California Science Test
Periodic Table of the Elements (Used for Grade 8 and High School)
12.01
1
1A
1
H
Hydrogen
2
1.01 2A
3
4
Li Be
2
Lithium Beryllium
6.94 9.01
11 12
Na Mg
Sodium Magnesium
3
4
22.99 24.31 3B 4B
19 20 21
22
K Ca Sc Ti
4
Potassium Calcium Scandium Titanium
39.10 40.08 44.96 47.87
37 38 39 40
Rb
Y
Sr
5
Zr
Rubidium Strontium Yitrium Zirconium
85.47 87.62 88.91
91.22
55
56 57 72
Cs Ba La Hf
6
Cesium Barium Lanthanum Hafnium
132.91 137.33 138.91 178.49
87 88 89 104
Fr
Ас
Ra
Rf
7
Francium Radium Actinium Fathertorium
(223) (226) (227)
13
ЗА
Key
5
11 Atomic number
B.
Na Element symbol
Boron
10.81
Sodium Element name
22,99
13
Average atomic mass
ΑΙ
7
6
5
8
9
12
10 11
Aluminum
5B 6B
26.98
8B
7B
1B 2B
24
23
25 26 27 28 29
31
30
V Cr Mn Fe Co Ni Cu Zn Ga
Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium
50.94 52.00 54.94 55.85 58.93 58.69 63.55 65.39 69.72
41 42 43 44 45 46
47 48 49
Nb Mo Tc Ru
Pd
Cd In
Niobium Molybdenum Technetium Ruthenium Rhodium Palladium
Silver
Cadmium Indium
92.91 95.94 (98) 101.07 102.91 106.42 107.87
112.41 114.82
73 74 75 76 77 78 79 80 81 :
Ta W Re Os Ir Pt Au Hg ΤΙ
Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold
Thallium
180.95 183.84 186.21 190.23 192.22 195.08 196.97 200.59 204.38
105 106 107 108 109 110 111 112 113
Db Sg Bh Hs Mt Ds Rg Cn Nh
Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenlum Copemicium Nihonium
(262) (266) (264) (269) (268) (281) (280) (285) (284)
18
BA
2
He
Helium
17
15
14
16
4A
4.00
6A
5A
7A
10
6.
7
9
8
с N 0
Ne
F
Nitrogen
Fluorine
Oxygen
Carbon
Neon
14.01 16.00 19.00 20.18
15
14
16
18
17
Si P S CI Ar
Silicon Phosphorus Sultur
Chlorine Argon
28.09 30.97 32.07 35.45 39.95
32 33
34
35 36
Ge As Se Br Kr
Germanium Arsenic Selenium Bromine Krypton
72.61
78.96 79.90 83.80
50
51
52 53 54
Sn Sb Te
Xe
Tin Antimony Tellurium lodine Xenon
118.71 121.76
127.60 126.90 191.29
82 83 84 85 a6
Pb Bi Po At
Load Bismuth Polonium Astatine Radon
207.2 208.98 (209) (210) (222)
174 115 116 117 118
FI
Mc
Lv Ts
Og
Flerovium Moscovium Livermorum Tennessine Oganesson
(289) (288) (293) (294) (294)
74.92
Rh
Ag
Rn
Mercury
(261)
Tb
If this number is in parentheses, then
it refers to the atomic mass of the
most stable isotope.
58 59 60 61 62 63 64
Ce Pr Nd Pm
Sm Eu
Gd
Cerium Preseodymium Neodymium Promethium Samarium Europium Gadolinium
140.12 140.91 144.24 (145 150.36 151.96 157.25
90 91
92 93 94 95 96
Th Pa U Np Pu Am Cm
Thorium Protactinium Uranium Neptunium Plutonium Americium Curium
232.04 231.04 238.03 (237) (244) (243) (247)
65 66 67
68
Dy Ho Er
Terbium Dysprosium Holmium Erbium
158.93 162.50 164.93 167.26
97 98 99 100
Bk Cf Es Fm
Berkelkum Califomium Einsteirdum Fermium
(247) (251) (252) (257)
69 70
71
Tm Yb Lu
Thulium Ytterbium Lutetium
168.93
173.04
174.97
101 102
103
Md No Lr
Mendelevum Nobelium Lawrencium
(258)
(259) (262)
Copyright © 2017 California Department of Education
equation?
1. How many moles of hydrogen sulfide are required to produce 5.0 moles of sulfur according to the following balanced
SO2 + 2H25 -> 35 + 2 H20
33 mol
17
1.5
0.60
2. Zinc reacts with hydrochloric acid according to the following balanced equation:
Zn + 2 HCI ----> ZnCl2 + Hz
If 0.60 mol of zinc reacts with 1.04 mol of hydrochloric acid, which if the following is the true statement?
To receive credit for this problem, conversions are needed to support answer Email work shown within 10 minutes of test submission
Hydrochloric acid is the excess reactant
Zinc is the limiting reactant,
Zinc is the excess reactant
There is not enough information to determine the limiting reactant.
3. Given the following equation:
2
What mass of fluorine is needed to completely react with 3.6 grams of water?
To receive credit for this problem, all work needs to be shown including conversions, and molar mass calculations. Email work shown
within 10 minutes of test submission
4. In a chemical reaction, one of the chemical reactants is present in to make sure that the limiting reactant is
completly consumed.
quantity
reagent
excess
none of the above
5. How many grams of carbon disulfide will be produced if 120 mg of carbon reacts with sulfur?
To receive credit for this problem, al work needs to be shown including a balanced equation, including a completed atom inventory
conversions, and molar mass calculations. Email work shown within 10 minutes of test submission
O 0289
0.769
149
76 x 109
6. Given the following equation:
How many moles of sodium oxide are required to produce 36 grams of sodium hydroxide?
To receive credit for this problem, all work needs to be shown including conversions, and molar mass calculations. Email work shown
within 10 minutes of test submission.
water.
7. Refer to the following balanced equation in which ammonia reacts with nitrogen monoxide to produce nitrogen and
4 NH3 + 6 NO ----> 5 N2 + 6H20
How many moles of nitrogen monoxide are required to react with 2.45 mol of ammonia?
To receive credit for this problem, conversion set-up needs to be shown. Email work shown within 10 minutes of test submission
8. How many calculation steps are required for mass-mass stoichiometry?
1
Depends on the given units
9.
Use the balanced "ham sandwich" equation, to answer the following question:
H + C + 2T + 3P + 2B ----> HCT2P3B2
Key: H = ham; C = Cheese; T = tomato; P = pickles; B = bread
If you have 12 slices of ham, 4 slices of cheese, 10 tomato slices, 15 pickles, and 10 slices of bread, how many sandwiches
can you make?
5
10. Which of the following is NOT true for stoichiometry calculations?
The chemical equation must be balanced.
We can determine the mass of the reactants necessary to produce a given amount of product.
We can determine the mass of the product that would be produced from a given amount of reactant.
The mole to mole ratio of reactants to products must be 1:1
11. When the leftover reactants have been used up, the limiting reactants remain in the reaction.
True
False
12. 2.00 moles of bromine reacts with 2.00 moles of sodium iodide to produce sodium bromide and iodine. How many
grams of iodine will be produced?
To receive credit for this problem, all work needs to be shown including a balanced equation, including a completed atom inventory
conversions, and molar mass calculations. Email work shown within 10 minutes of test submission
13. Use the following information to answer the problem:
Lead oxide reacts with hydrochloric acid to produce lead chloride and water.
If 13 g of lead oxide is mixed with 6.4 g of hydrochloric acid, identify the limiting reactant.
To receive credit for this problem, all work needs to be shown including a balanced equation, including a completed atom inventory,
conversions, and molar mass calculations. Email work shown within 10 minutes of test submission
14. Molar mass is the conversion factor between grams and moles.
o True
False
15. Using the quantities of hydrogen and oxygen atoms shown in the figure, which statement is FALSE?
I
H
I
H
?
H
w
H
H
?
H
1
Oo oo
Hydrogen is the limiting reactant
In a water molecule, the ratio of hydrogen to oxygen is 21.
2 molecules of water molecules can be made
All of the above are correct.
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