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10 Cards in this Set
- Front
- Back
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Which element has the highest electronegativity? A) nitrogen B) iodine C) fluorine D) selenium |
H |
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Which of these is an example of a chemical bond? A) methane is burned in air B) solid gold is melted to make jewelry C) a bar of copper is stretched into a long copper wire D) iron is coated with bronze to prevent rusting |
F |
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What volume will 50.2 grams of CO2 occupy at STP? A) 1.14 liters B) 19.6 liters C) 25.6 liters D) 98.2 liters |
C |
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Which part of an is most directly involved in a chemical bond? A) nucleus B) electron C) proton D) neutron |
B |
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The half-life of cobalt -60 is 5.27 years approximately how much of a 199g sample will remain after 20 years A) 10.0 g B) 12.5 g C) 40.0 g D) 50.0 g |
B |
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4NH3 + 5O2 -------> 4NO + 6H2O How many grams of water (H2O) will be formed when 34 grams of ammonia reacts with an excess of oxygen? A) 51 grams B) 54 grams C) 64 grams D) 110 grams |
B |
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Am + Cl2 -------> What is the product of the chemical reaction? A) Al2Cl3 B) AlCl C) AlCl2 D) AlCl3 |
D |
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Isotopes of an element have different numbers of what? A) protons B) neutrons C) electrons D) positrons |
B |
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What is the molarity of a 0.5 L sample of solution that contains 60.0 g of sodium hydroxide (NaOH) A) 0.8 M B) 1.5 M C) 3.0 M D) 6.0 M |
C |
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Which element has the highest electronegativity? A) beryllium (Be) B) fluorine (F) C) silver (Ag) D) silicon (Si) |
B |
