Hey buddy please find attached the solution to your assignment
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1. The combustion of fossil fuels is a cause of global warming
2. A description of an event that actually occurs in the physical world
3. A tentative explanation for an observed event that, if true, will enable prediction of
4. The results of an unsuccessful test of a hypothesis should be discarded
5. When the mass of helium in a piston at 25oC and 1 atm, was increased from 0.070 grams
to 0.140 grams, the volume of the piston increased from 0.428L to 0.856L.
6. A chemist finds that 22.38 mL of a certain liquid weighs 35.758g. What is the density of
7. What information do we need to determine the density of the liquid sample?
Answer: volume of the liquid sample, mass of the liquid sample
8. What is the mass of a 39.5 mL sample of a liquid, which has a density of 0.818 g/mL?
9. What information do we need to determine the mass of the liquid sample?
Answer: volume of the liquid sample, density of the liquid sample
10. You have a 100.0mL graduated cylinder containing 50.0mL of water. You carefully place
a 100-g piece of brass (density = 8.56g/mL) into the water. What is the final volume
reading in the graduated cylinder?
11. What does the density of a substance represent?
Answer: the mass per unit volume
12. A kilogram of copper occupies a much smaller volume than a kilogram of calcium. What
substance has a much higher density?
13. Is the density of a gaseous substance likely to be larger or smaller than the density of a
liquid or solid substance at the same temperature? Why?
Answer: Smaller, because gas particles have less mass
14. Referring to the table bel...