Description
A hockey player applies an average force of 240.0 N to a 0.55 kg hockey puck for a time of 0.008 seconds. Determine the impulse experienced by the hockey puck.
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Explanation & Answer
F = 240 N
m = 0.55 kg = 0.55 * 1000 g = 550 g
t = 0.008 sec
Impulse = ?
as we know that
I = F*t
I = 240 * 0.008
I = 1.92 Ns
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Houston Community College Ohms Law Current vs Resistance Question
Do the experiment use i don't any number (data) for the table, please do it fast, I at work so I kind busy. please r ...
Houston Community College Ohms Law Current vs Resistance Question
Do the experiment use i don't any number (data) for the table, please do it fast, I at work so I kind busy. please read the page 13-14 Experiment 3: Ohm’s Law do all the question fill up the table graph, show calculation
Construct a graph of Current (vertical axis) vs Resistance.
? For each of your sets of data, calculate the ratio of Voltage/Resistance. Compare the values you calculate with the measured values of the current.
? From your graph, what is the mathematical relationship between Current and Resistance?
? Ohm’s Law states that current is given by the ratio of voltage/resistance. Does your data concur with this?
? What were possible sources of experimental error in this lab? Would you expect each to make your results larger or to make them smaller?
San Diego State University River Processes and Landforms Lab Report
River Processes & LandformsIntroductionThe lab this week is in three parts. In the first part, you will study rivers usin ...
San Diego State University River Processes and Landforms Lab Report
River Processes & LandformsIntroductionThe lab this week is in three parts. In the first part, you will study rivers using Google Earth. In the second part, you will use a few household materials to build a stream table model, to make observations about water flow firsthand. Before beginning this lab, take a few minutes to review the list of materials required to complete Part 2, on page 5. Also please note, that the stream table setup includes an overnight step. Contact your instructor if you have any questions. Your final product for this lab, the third part, will be a lab report. It is not necessary to submit this worksheet. Your report should cover all of the questions you have answered here (in paragraph essay form, not question and answer format), as well as your stream table observations (including drawings and photographs). It should discuss how these two tools – Google Earth and a stream table – can be used to study different aspects of rivers. Part 1: Observing Rivers in Google EarthThis lab assumes a working knowledge of Google Earth, which you should have gained by completing the first week's lab on plate tectonics. It also assumes that Google Earth Pro has already been installed on your computer (see Module One lab for instructions on how to do that.)For each location you will be directed to in this lab, you have two choices. The first is to use the Google Earth search feature, following the instructions in this lab. The "workaround", if you have difficulty finding a particular location, is to use the Placemarks – Earth Rivers KMZ file, which can be downloaded from here: https://serc.carleton.edu/NAGTWorkshops/earlycareer2010/activities/45769.html (Links to an external site.). Upon downloading, the file should open automatically in Google Earth Pro.Please note that the instructor is aware that there is an answer key file available from the same online location as the KMZ file. You are welcome to use it to check your answers here if you wish. However, your final lab paper should reflect original writing and analysis – not merely a repetition of the very brief answer key responses.Let's get started! Open your Google Earth Pro – either directly from your computer, or by downloading and opening the Placemarks KMZ file. Locate Oxbow Bend (part of the Snake River in Grand Teton National Park, Wyoming). Observe the feature in Google Earth:
What type of river is this, meandering or braided, and how can you tell?Discuss briefly the processes of erosion and deposition that are occurring in this area and why they are happening. What is the likely eventual fate of Oxbow Bend?Is there any evidence of this particular process operating in the past along this portion of the Snake River? If so, describe the evidence. If not, describe the evidence you would have expected to see but did not?Open the Oxbow Bend panorama (either in Google Earth or via the webpage https://www.thewave.info/GrandTeton/Oxbow%20Bend/index.html (Links to an external site.)). You can zoom in and out of the pan as needed. (Click 'Exit Photo' to return to the regular Google Earth view).
Consider the processes of erosion and deposition you observed in Question 1: what evidence of these processes can you find in the panorama?Describe the Snake River plain as seen in the pan: the river plain extends from the foreground out to the base of the Tetons in the distance.Examine the river plain to determine if any river terraces are present. Describe the terraces you observe (size, how they likely formed), or suggest an explanation for why there are no terraces present.Locate Horseshoe Bend (near Page, AZ), which is part of the Colorado River east of the Grand Canyon. (Panorama a https://www.360cities.net/image/horseshoe1 (Links to an external site.)).First, explore this part of the Colorado River in Google Earth and describe the type of river present. How is this river similar or different to the portion of the Snake River you observed in Questions 1 and 2?Second, examine the location of Horseshoe Bend. What type of feature is this? How is it similar to and different from Oxbow Bend?Examine the panorama. Describe the Colorado River as observed in the pan: in addition, describe any terraces you observe (size, how they likely formed), or suggest an explanation for why there are no terraces present. What does this suggest about the geologic history of this part of Arizona compared to the portion of Wyoming observed earlier?Locate the drainage using the placemark "Drainage (CA)" or by searching for the latitude/ longitude 35° 8' 9.74"N, 119° 40' 29.25"W.What type of drainage pattern does this stream exhibit? How is this different from the Snake and Colorado Rivers?Suggest a reason for the drainage pattern observed here (zoom out and consider your location, especially the long linear valley associated with the stream).Find the location where the Volga River enters the Caspian Sea.What type of structure is this and how does it form?Part 2: Observing Rivers Using a Stream TableIn this part of the lab, you will contrast a stream table and use it to experiment with river flow. We will follow the scientific method to explore how river channel morphology (shape) changes when a variable, like gradient (slope of the stream) and discharge (amount of water flowing in it), is altered.To get started, and to get a sense of what you will be doing, check out a virtual stream video at the following location: Stream Table Timelapse (Links to an external site.). What landform develops over time where the river meets the water? (Hint: compare with what you saw where the Volga River enters the Caspian Sea in the Google Earth activity.)Now let's set up a real stream table! Note: the set-up includes an overnight step.Materials needed (where several choices are offered, best option is in bold)A rectangular tray or pan (paint roller pan, baking pan, or cookie sheet with sides)Play sand (not construction sand) or corn meal (plain – not self-rising)A single-use cup (Paper or Styrofoam)A paper clip or push pin to make a hole in the cupA pitcher of waterBooks or other objects of different thicknesses (to tilt stream table)Construction process:Add sand or corn meal to about 2/3 of length of tray. Sand or corn meal should fill most of the height of the tray.Gently sprinkle water from the pitcher onto the clay or corn meal; allow it to soak in. Continue until the sand or corn meal is saturated.Leave your stream table to sit overnight.Set up your stream table with one or more books under one end, to provide slope for your stream.Using the pin or an unbent paper clip, make a hole in the side of the single-use cup, near the base. Make it big enough so that water can flow out of the cup at a fairly rapid rate. Have the pitcher of water available so you can refill your cup as needed. Choose Your Variable:For this experiment, you can choose either gradient (slope) or discharge (stream flow rate). Make a Hypothesis: Go back to your observations from the virtual stream table on page 5. Come up with a hypothesis (educated guess) as to what you think will happen with your stream channel when you alter your chosen variable. How might the stream morphology change?Record your hypothesis here.Run the ExperimentRun your experiment. If you are altering gradient, run the experiment twice with two different levels of tilt to your stream table – I recommend making your second stream twice as steep as your first one. If you are altering flow rate, after the first experiment, make the hole in your cup noticeably larger (aim for doubled flow). To run your experiment, hold your empty paper cup about an inch above the filled end of your stream table, roughly centered between the two sides, with the hole facing "downstream". Fill the cup and let the water flow out of it and onto the sand or corn meal. Keep filling the cup and letting the water flow until your pitcher is empty. Record your results with a digital photograph; I recommend a sketch, too (which can also be photographed). You should include these visuals in your final report. Where did erosion occur? Where do you see deposition taking place?Drain as much of the water as possible out of your stream table and smooth over the sand or corn meal. Change your variable (steeper slope or higher flow rate, but not both). Run your experiment a second time and record results again. Accept or Reject Your HypothesisAccept your hypothesis if what happened matched what you thought would happen. Reject your hypothesis if it didn't.Accept or reject your hypothesis here. Why do you suppose you got the results that you did?Part 3: The ReportWrite up your lab in a well-crafted report. The report should cover all the questions from Part 1 and your experiment in Part 2. Also include a discussion of how these two tools for studying rivers, Google Earth and a stream table, reveal different aspects of stream morphology. What connections can you make between what you saw using your stream table and what you discovered on Google Earth? What have you learned about river processes and landforms from this lab? Include a title page, your digital photos from the stream table activity, and a list of any references you cited in your text. Please adhere to the CSU-Global Guide to Writing and APA formatting guidelines (Links to an external site.).
SMC Environmental Pollution Essay
Dr. Hall Movie Analysis RubricMovie Analysis: Write a 750-1000 word essay analyzing documentary films Death by Design(2016 ...
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Dr. Hall Movie Analysis RubricMovie Analysis: Write a 750-1000 word essay analyzing documentary films Death by Design(2016) and Anthropocene: The Human Epoch(2018), both available to rent online for minimal cost (also see: https://tubitv.com/movies/534751/death-by-design And http://sohstream.csudh.edu/jehall/anthropocene.mp4). Briefly summarize each film and compare topics expressed in each film in a more detailed interpretation and discussion. Select two additional scholarly works to support your arguments, such as books or peer reviewed articles. Essay must be typed, double spaced, 1” margin all around, Times New Roman, and 12-point font. Cite your sources using APA formatting (https://libguides.csudh.edu/ld.php?content_id=5209...).Upload to Blackboard in a timely manner. Due Date: Tuesday, October 12 References: Sources used for “Reference” section must be scholarly publications such as books and peer reviewed articles published in a newspaper, book or journal. Online access to scholarly publications is available through the CSUDH online library page. You may use the lectures or online sources in addition to scholarly articles. Make sure to include the films themselves in addition to 2 outside references for a total of 4 minimum.Movie Analysis Rubric3 Length (750-1000 words)2 Reference both documentary films4 Interpretation and Discussion (see below)2 Include at least two supporting references (direct quote, paraphrase, data)3 Evaluate significance of films to cultural understanding of pollution and climate change1 Document Format (follow all instructions)4 Cite your sources using APA formatting with reference section 1 Upload to Blackboard in timely mannerWhile viewing the films consider the following questions, but do not answer them directly in your paper: 1) Consider the significance of films to our understanding of pollution and consumerism or environment versus economy? 2) What do you think of in regard to your own life experience when watching these film? How do they make you feel?3) What did you learn by watching this film? Is there anything in this film that you do not agree with or that you find controversial? Do not tell me what you think I want to hear or might agree with. Truly take the time to express your own ideas and opinions. 4) You can quote directly, paraphrase, or cite statistics or data from different sources. Make sure you have at least 4 sources of information, 2 from scholarly articles and the 2 films themselves. 5) How do the two films compare to one another? What do other scholarly books and/or articles have to say about the themes talked about in these films? How to they support or conflict with what was portrayed in the films?
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Lab 15 Soluble And Insoluble Salts
1Ag1+(aq) + 1NO31+(aq) + 1Na1+(aq) + 1Cl1-(aq) 3 Ag1+(aq) + 3 NO31-(aq) + 3 Na1+(aq) + 1 PO43-(aq) 1 Ca2+(aq) + 2 ...
Lab 15 Soluble And Insoluble Salts
1Ag1+(aq) + 1NO31+(aq) + 1Na1+(aq) + 1Cl1-(aq) 3 Ag1+(aq) + 3 NO31-(aq) + 3 Na1+(aq) + 1 PO43-(aq) 1 Ca2+(aq) + 2 NO31-(aq) + 2 Na1+(aq) + 1 ...
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Geomicrobiology Test Very Hard
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Panel Presentation: Privacy Impact Assessments (PIA)
You have been invited to participate in a panel presentation for a conference attended by federal government IT managers a ...
Panel Presentation: Privacy Impact Assessments (PIA)
You have been invited to participate in a panel presentation for a conference attended by federal government IT managers and staff. For this activity, you must prepare a 5 to 7 paragraph briefing statement which answers the following questions. Use information from the weekly readings and Case Study #1. Go to Content >> Course Resources >> Expanded Explanation for Discussion Question Responses to learn more about the format requirements for each discussion.Definitions:Privacy Impact Assessment (PIA): A PIA is both a process and a document. It is a process that focuses upon identifying and assessing risks related to privacy of data handled by a specific IT system or database. A PIA is also a document in which the results of the assessment are communicated to stakeholders. Some PIA’s are released to the public in full while others are redacted to remove sensitive / non-public information.1. What is privacy? Is it a right? An expectation? Discuss differing definitions, e.g. "the average person" definition vs. a legal definition, and how these differences impact risk assessments for privacy protections (or the lack thereof).2. What are some important best practices for protecting privacy for information collected, stored, used, and transferred by the US federal government? Identify and discuss three or more best practice recommendations for reducing risk by improving or ensuring the privacy of information processed by or stored in an organization’s IT systems and databases.3. Explain why federal government agencies and departments required to complete PIA's. Must a PIA be completed for every federal IT system? Why or why not?4. Name and briefly describe 3 benefits to citizens which result from the use of PIA's. (Considering citizen's needs for privacy and the protection of the privacy of individuals whose information is collected, processed, transmitted, and stored in federal government IT systems and databases.)Provide in-text citations and references for 3 or more authoritative sources. Put the reference list at the end of your posting.
Houston Community College Ohms Law Current vs Resistance Question
Do the experiment use i don't any number (data) for the table, please do it fast, I at work so I kind busy. please r ...
Houston Community College Ohms Law Current vs Resistance Question
Do the experiment use i don't any number (data) for the table, please do it fast, I at work so I kind busy. please read the page 13-14 Experiment 3: Ohm’s Law do all the question fill up the table graph, show calculation
Construct a graph of Current (vertical axis) vs Resistance.
? For each of your sets of data, calculate the ratio of Voltage/Resistance. Compare the values you calculate with the measured values of the current.
? From your graph, what is the mathematical relationship between Current and Resistance?
? Ohm’s Law states that current is given by the ratio of voltage/resistance. Does your data concur with this?
? What were possible sources of experimental error in this lab? Would you expect each to make your results larger or to make them smaller?
San Diego State University River Processes and Landforms Lab Report
River Processes & LandformsIntroductionThe lab this week is in three parts. In the first part, you will study rivers usin ...
San Diego State University River Processes and Landforms Lab Report
River Processes & LandformsIntroductionThe lab this week is in three parts. In the first part, you will study rivers using Google Earth. In the second part, you will use a few household materials to build a stream table model, to make observations about water flow firsthand. Before beginning this lab, take a few minutes to review the list of materials required to complete Part 2, on page 5. Also please note, that the stream table setup includes an overnight step. Contact your instructor if you have any questions. Your final product for this lab, the third part, will be a lab report. It is not necessary to submit this worksheet. Your report should cover all of the questions you have answered here (in paragraph essay form, not question and answer format), as well as your stream table observations (including drawings and photographs). It should discuss how these two tools – Google Earth and a stream table – can be used to study different aspects of rivers. Part 1: Observing Rivers in Google EarthThis lab assumes a working knowledge of Google Earth, which you should have gained by completing the first week's lab on plate tectonics. It also assumes that Google Earth Pro has already been installed on your computer (see Module One lab for instructions on how to do that.)For each location you will be directed to in this lab, you have two choices. The first is to use the Google Earth search feature, following the instructions in this lab. The "workaround", if you have difficulty finding a particular location, is to use the Placemarks – Earth Rivers KMZ file, which can be downloaded from here: https://serc.carleton.edu/NAGTWorkshops/earlycareer2010/activities/45769.html (Links to an external site.). Upon downloading, the file should open automatically in Google Earth Pro.Please note that the instructor is aware that there is an answer key file available from the same online location as the KMZ file. You are welcome to use it to check your answers here if you wish. However, your final lab paper should reflect original writing and analysis – not merely a repetition of the very brief answer key responses.Let's get started! Open your Google Earth Pro – either directly from your computer, or by downloading and opening the Placemarks KMZ file. Locate Oxbow Bend (part of the Snake River in Grand Teton National Park, Wyoming). Observe the feature in Google Earth:
What type of river is this, meandering or braided, and how can you tell?Discuss briefly the processes of erosion and deposition that are occurring in this area and why they are happening. What is the likely eventual fate of Oxbow Bend?Is there any evidence of this particular process operating in the past along this portion of the Snake River? If so, describe the evidence. If not, describe the evidence you would have expected to see but did not?Open the Oxbow Bend panorama (either in Google Earth or via the webpage https://www.thewave.info/GrandTeton/Oxbow%20Bend/index.html (Links to an external site.)). You can zoom in and out of the pan as needed. (Click 'Exit Photo' to return to the regular Google Earth view).
Consider the processes of erosion and deposition you observed in Question 1: what evidence of these processes can you find in the panorama?Describe the Snake River plain as seen in the pan: the river plain extends from the foreground out to the base of the Tetons in the distance.Examine the river plain to determine if any river terraces are present. Describe the terraces you observe (size, how they likely formed), or suggest an explanation for why there are no terraces present.Locate Horseshoe Bend (near Page, AZ), which is part of the Colorado River east of the Grand Canyon. (Panorama a https://www.360cities.net/image/horseshoe1 (Links to an external site.)).First, explore this part of the Colorado River in Google Earth and describe the type of river present. How is this river similar or different to the portion of the Snake River you observed in Questions 1 and 2?Second, examine the location of Horseshoe Bend. What type of feature is this? How is it similar to and different from Oxbow Bend?Examine the panorama. Describe the Colorado River as observed in the pan: in addition, describe any terraces you observe (size, how they likely formed), or suggest an explanation for why there are no terraces present. What does this suggest about the geologic history of this part of Arizona compared to the portion of Wyoming observed earlier?Locate the drainage using the placemark "Drainage (CA)" or by searching for the latitude/ longitude 35° 8' 9.74"N, 119° 40' 29.25"W.What type of drainage pattern does this stream exhibit? How is this different from the Snake and Colorado Rivers?Suggest a reason for the drainage pattern observed here (zoom out and consider your location, especially the long linear valley associated with the stream).Find the location where the Volga River enters the Caspian Sea.What type of structure is this and how does it form?Part 2: Observing Rivers Using a Stream TableIn this part of the lab, you will contrast a stream table and use it to experiment with river flow. We will follow the scientific method to explore how river channel morphology (shape) changes when a variable, like gradient (slope of the stream) and discharge (amount of water flowing in it), is altered.To get started, and to get a sense of what you will be doing, check out a virtual stream video at the following location: Stream Table Timelapse (Links to an external site.). What landform develops over time where the river meets the water? (Hint: compare with what you saw where the Volga River enters the Caspian Sea in the Google Earth activity.)Now let's set up a real stream table! Note: the set-up includes an overnight step.Materials needed (where several choices are offered, best option is in bold)A rectangular tray or pan (paint roller pan, baking pan, or cookie sheet with sides)Play sand (not construction sand) or corn meal (plain – not self-rising)A single-use cup (Paper or Styrofoam)A paper clip or push pin to make a hole in the cupA pitcher of waterBooks or other objects of different thicknesses (to tilt stream table)Construction process:Add sand or corn meal to about 2/3 of length of tray. Sand or corn meal should fill most of the height of the tray.Gently sprinkle water from the pitcher onto the clay or corn meal; allow it to soak in. Continue until the sand or corn meal is saturated.Leave your stream table to sit overnight.Set up your stream table with one or more books under one end, to provide slope for your stream.Using the pin or an unbent paper clip, make a hole in the side of the single-use cup, near the base. Make it big enough so that water can flow out of the cup at a fairly rapid rate. Have the pitcher of water available so you can refill your cup as needed. Choose Your Variable:For this experiment, you can choose either gradient (slope) or discharge (stream flow rate). Make a Hypothesis: Go back to your observations from the virtual stream table on page 5. Come up with a hypothesis (educated guess) as to what you think will happen with your stream channel when you alter your chosen variable. How might the stream morphology change?Record your hypothesis here.Run the ExperimentRun your experiment. If you are altering gradient, run the experiment twice with two different levels of tilt to your stream table – I recommend making your second stream twice as steep as your first one. If you are altering flow rate, after the first experiment, make the hole in your cup noticeably larger (aim for doubled flow). To run your experiment, hold your empty paper cup about an inch above the filled end of your stream table, roughly centered between the two sides, with the hole facing "downstream". Fill the cup and let the water flow out of it and onto the sand or corn meal. Keep filling the cup and letting the water flow until your pitcher is empty. Record your results with a digital photograph; I recommend a sketch, too (which can also be photographed). You should include these visuals in your final report. Where did erosion occur? Where do you see deposition taking place?Drain as much of the water as possible out of your stream table and smooth over the sand or corn meal. Change your variable (steeper slope or higher flow rate, but not both). Run your experiment a second time and record results again. Accept or Reject Your HypothesisAccept your hypothesis if what happened matched what you thought would happen. Reject your hypothesis if it didn't.Accept or reject your hypothesis here. Why do you suppose you got the results that you did?Part 3: The ReportWrite up your lab in a well-crafted report. The report should cover all the questions from Part 1 and your experiment in Part 2. Also include a discussion of how these two tools for studying rivers, Google Earth and a stream table, reveal different aspects of stream morphology. What connections can you make between what you saw using your stream table and what you discovered on Google Earth? What have you learned about river processes and landforms from this lab? Include a title page, your digital photos from the stream table activity, and a list of any references you cited in your text. Please adhere to the CSU-Global Guide to Writing and APA formatting guidelines (Links to an external site.).
SMC Environmental Pollution Essay
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SMC Environmental Pollution Essay
Dr. Hall Movie Analysis RubricMovie Analysis: Write a 750-1000 word essay analyzing documentary films Death by Design(2016) and Anthropocene: The Human Epoch(2018), both available to rent online for minimal cost (also see: https://tubitv.com/movies/534751/death-by-design And http://sohstream.csudh.edu/jehall/anthropocene.mp4). Briefly summarize each film and compare topics expressed in each film in a more detailed interpretation and discussion. Select two additional scholarly works to support your arguments, such as books or peer reviewed articles. Essay must be typed, double spaced, 1” margin all around, Times New Roman, and 12-point font. Cite your sources using APA formatting (https://libguides.csudh.edu/ld.php?content_id=5209...).Upload to Blackboard in a timely manner. Due Date: Tuesday, October 12 References: Sources used for “Reference” section must be scholarly publications such as books and peer reviewed articles published in a newspaper, book or journal. Online access to scholarly publications is available through the CSUDH online library page. You may use the lectures or online sources in addition to scholarly articles. Make sure to include the films themselves in addition to 2 outside references for a total of 4 minimum.Movie Analysis Rubric3 Length (750-1000 words)2 Reference both documentary films4 Interpretation and Discussion (see below)2 Include at least two supporting references (direct quote, paraphrase, data)3 Evaluate significance of films to cultural understanding of pollution and climate change1 Document Format (follow all instructions)4 Cite your sources using APA formatting with reference section 1 Upload to Blackboard in timely mannerWhile viewing the films consider the following questions, but do not answer them directly in your paper: 1) Consider the significance of films to our understanding of pollution and consumerism or environment versus economy? 2) What do you think of in regard to your own life experience when watching these film? How do they make you feel?3) What did you learn by watching this film? Is there anything in this film that you do not agree with or that you find controversial? Do not tell me what you think I want to hear or might agree with. Truly take the time to express your own ideas and opinions. 4) You can quote directly, paraphrase, or cite statistics or data from different sources. Make sure you have at least 4 sources of information, 2 from scholarly articles and the 2 films themselves. 5) How do the two films compare to one another? What do other scholarly books and/or articles have to say about the themes talked about in these films? How to they support or conflict with what was portrayed in the films?
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Lab 15 Soluble And Insoluble Salts
1Ag1+(aq) + 1NO31+(aq) + 1Na1+(aq) + 1Cl1-(aq) 3 Ag1+(aq) + 3 NO31-(aq) + 3 Na1+(aq) + 1 PO43-(aq) 1 Ca2+(aq) + 2 ...
Lab 15 Soluble And Insoluble Salts
1Ag1+(aq) + 1NO31+(aq) + 1Na1+(aq) + 1Cl1-(aq) 3 Ag1+(aq) + 3 NO31-(aq) + 3 Na1+(aq) + 1 PO43-(aq) 1 Ca2+(aq) + 2 NO31-(aq) + 2 Na1+(aq) + 1 ...
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