AliciaLiffick
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- Mar 8, 2011
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1. What would be the next step after testing a hypothesis?
A) Dismiss data.
B) Communicate results.
C) Analyze results.
D) Form a hypothesis.
2. What is the electron configuration for neon?
A) 1s2, 2s2, 3p6
B) 1s2, 2p6
C) 1s2, 2s2, 2p5
D) 1s2, 2s2, 2p6
3. When lithium is placed in water, it fizzes. When sodium is placed in water, it fizzes and catches fire. What will happen when potassium is placed in water?
A) It will do nothing.
B) It will fizz.
C) It will catch fire immediately.
D) It will fizz and catch fire.
4. What type of bond is formed when calcium bonds with bromine?
A) Metallic
B) Ionic
C) Polar covalent
D) Nonpolar covalent
5. All elements are different from each other because they have a different number of
A) protons.
B) neutrons.
C) electrons.
D) protons, electrons, and neutrons.
6. What is the correct balanced equation for the following: Iron reacts with copper II oxide to form copper and iron III oxide?
A) Fe + 3CuO2 -> Cu + 2FeO3
B) 2Fe + 3CuO -> 3Cu + Fe2O3
C) Fe + CuO -> Cu + Fe2O3
D) 3Fe + CuO -> 2Cu + FeO
7. How many grams of water are produced when 300 grams of hydrogen react with an unlimited amount of oxygen?
A) 2.7 x 103 g H2O
B) 3.33 x 101 g H2O
C) 27 g H2O
D) 27000 g H2O
8. Predict the balanced equation for nickel being added to sodium chloride.
A) Ni + NaCl -> Na + NiCl
B) 2Ni + 3NaCl -> 3Na + Ni2Cl3
C) Ni + 2NaCl -> 2Na + NiCl2
D) Ni + NaCl -> No reaction
9. A sample is massed out at 200,567.825 grams and multiplied by 2.5 kilograms. What is the correct answer in kilograms and significant digits?
A) 500 kg
B) 501.4 kg
C) 50.14 kg
D) 5.014 x 105 g
10. 8000 kJ of energy are released during a reaction and 5000 kJ of energy are absorbed into the bonds of the products. This reaction is
A) endothermic.
B) neither endothermic or exothermic.
C) endothermic and exothermic.
D) exothermic.
A) Dismiss data.
B) Communicate results.
C) Analyze results.
D) Form a hypothesis.
2. What is the electron configuration for neon?
A) 1s2, 2s2, 3p6
B) 1s2, 2p6
C) 1s2, 2s2, 2p5
D) 1s2, 2s2, 2p6
3. When lithium is placed in water, it fizzes. When sodium is placed in water, it fizzes and catches fire. What will happen when potassium is placed in water?
A) It will do nothing.
B) It will fizz.
C) It will catch fire immediately.
D) It will fizz and catch fire.
4. What type of bond is formed when calcium bonds with bromine?
A) Metallic
B) Ionic
C) Polar covalent
D) Nonpolar covalent
5. All elements are different from each other because they have a different number of
A) protons.
B) neutrons.
C) electrons.
D) protons, electrons, and neutrons.
6. What is the correct balanced equation for the following: Iron reacts with copper II oxide to form copper and iron III oxide?
A) Fe + 3CuO2 -> Cu + 2FeO3
B) 2Fe + 3CuO -> 3Cu + Fe2O3
C) Fe + CuO -> Cu + Fe2O3
D) 3Fe + CuO -> 2Cu + FeO
7. How many grams of water are produced when 300 grams of hydrogen react with an unlimited amount of oxygen?
A) 2.7 x 103 g H2O
B) 3.33 x 101 g H2O
C) 27 g H2O
D) 27000 g H2O
8. Predict the balanced equation for nickel being added to sodium chloride.
A) Ni + NaCl -> Na + NiCl
B) 2Ni + 3NaCl -> 3Na + Ni2Cl3
C) Ni + 2NaCl -> 2Na + NiCl2
D) Ni + NaCl -> No reaction
9. A sample is massed out at 200,567.825 grams and multiplied by 2.5 kilograms. What is the correct answer in kilograms and significant digits?
A) 500 kg
B) 501.4 kg
C) 50.14 kg
D) 5.014 x 105 g
10. 8000 kJ of energy are released during a reaction and 5000 kJ of energy are absorbed into the bonds of the products. This reaction is
A) endothermic.
B) neither endothermic or exothermic.
C) endothermic and exothermic.
D) exothermic.