Chemistry CBA Review

February 2010

1. How many total atoms are in AgCl3Cu2?

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1. 42. 53. 64. 7

2. How are elements organized on the periodic

table?

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1. Metals on left, Nonmetals on right

2. Nonmetals on left, Metals on right

3. Gases on left4. Metalloids in

groups 3-12

3. Covalent bonds involve…

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1. Transfer of electrons

2. Really strong forces

3. Creation of ions4. Sharing of

electrons

4. Which tool best measures the mass of a

liquid?

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1. Graduated cylinder

2. Scale3. Metric ruler4. Triple-beam

balance

5. Which property of a baseball would be different

on the moon?

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1. Volume2. Weight3. Mass4. Density

6. Which of the following describes only a physical

change?

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1. An iron tool turning red due to rust

2. A leaf in the fall turning yellow as photosynthesis stops

3. A snowball melting in someone’s hand

4. A piece of wood turning black in a fire

7. Which of the following is not a mixture?

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1. Water2. Air3. Lemonade4. Pool water

8. Which of the following is NOT a property of a

metal?

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1. Solid at room temperature

2. Ductility3. Malleability4. Good insulator

9. If 100 grams of H2O decomposes into hydrogen and oxygen, which of the following

must be true?

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1. There will be 50 grams of hydrogen and 40 grams of oxygen

2. There will be 50 grams of hydrogen and 50 grams of oxygen

3. There will be 25 grams of hydrogen and 25 grams of oxygen

4. There will be 40 grams of hydrogen and 50 grams of oxygen

10. An element’s mass number is the number of ___________ in its

atoms.

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1. Protons and electrons

2. Electrons and neutrons

3. Protons only4. Protons and

neutrons

11. The part of an experiment that the scientist manipulates

is the…

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1. Independent Variable

2. Dependent Variable

3. Constant Variable

4. Control Group

12. The part of an experiment that the

scientist measures is…

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1. Independent Variable

2. Dependent Variable

3. Constant Variable

4. Control Group

13. The part of an experiment that the scientist uses for comparison

is…

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1. Independent Variable

2. Dependent Variable

3. Constant Variable

4. Control Group

14. The part of an experiment that the scientist keeps consistent for

all is…

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1. Independent Variable

2. Dependent Variable

3. Constant Variable

4. Control Group

15. This is the term for what is formed when two or more atoms chemically

combine.

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1. Element2. Compound3. Molecule4. Mixture

16. This is the term for what is formed when two or more elements chemically

combine.

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1. Element2. Compound3. Molecule4. Mixture

17. What are the two most reactive families on the

periodic table?

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1. Halogens and Alkaline Earth Metals

2. Alkaline Earth Metals and Alkali Metals

3. Alkali Metals and Halogens

4. Halogens and Noble Gases

18. When atoms combine in an ionic bond…

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1. The resulting particles are positively charged

2. The resulting particles are negatively charged

3. The resulting particles are neutral in charge

4. The resulting particles share electrons

19. This is the number of valence electrons of the elements in the

carbon family.

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1. 42. 53. 64. 7

20. These are the reacants of photosynthesis.

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1. Glucose and Water

2. Carbon Dioxide and Glucose

3. Water and Carbon Dioxide

4. Oxygen and Water