PS S1 Final Review

Question 1

Fusion is the process in which two nucleicombine and make one new nucleus.

Accepted Answer

True

Question 2

The change from liquid to solid, or the reverse of melting, is called

Accepted Answer

Freezing

Question 3

The substances listed on the left sideof a chemical equation are the

Accepted Answer

reactants.

Question 4

A covalent bond in which electrons areunequally spread around the molecule is

Accepted Answer

polar

Question 5

Sugar, C6H12O6, is an example of a(n)

Accepted Answer

Compound

Question 6

The volume of a gas will decrease as the pressure decreases. (Use Boyle’s Law)

Accepted Answer

False

Question 7

What type of reaction isFeS + 2HCl → FeCl2 + H2S

Accepted Answer

a doublereplacement reaction

Question 8

During fission, atomic nuclei ofunstable isotopes

Accepted Answer

give off radiation

Question 9

Please select a Team.

Accepted Answer

Brown Hair, Blonde Hair, Red Hair, Black Hair

Question 10

The elements that do NOT formcompounds are

Accepted Answer

nobel gases

Question 11

The valence electrons are thoseelectrons in the center of an atom.

Accepted Answer

False

Question 12

A chemical bond formed when twoatoms “share” electrons is called a(n)

Accepted Answer

covalent bond

Question 13

A solid is a state of matter that has a(n)

Accepted Answer

definite volume anda definite shape.

Question 14

A change that produces one or more new substances is called a physical change.

Accepted Answer

False

Question 15

A molecule is considered nonpolar whenone side of an atom is more negative than the other side.

Accepted Answer

False

Question 16

pumpkin pie : cool whip :: lemon pie :

Accepted Answer

meringue

Question 17

A material used to slow the rate of achemical reaction is a(n)

Accepted Answer

inhibitor.

Question 18

One example of a physical change is:

Accepted Answer

Disolving Salt

Question 19

The minimum amount of energy that has tobe added to start a reaction is the

Accepted Answer

activation/threshold.

Question 20

A scientific law is a close agreementbetween experts and is also revisable.

Accepted Answer

False

Question 21

Who first said an atom has a nucleus with (+)charge with electrons flying randomly around it?

Accepted Answer

Ernest Rutherford

Question 22

Mixing baking soda and Vinegar beaker become cooler to the touch. This is an example of an

Accepted Answer

endothermic reaction.

Question 23

Which of the following is a balanced chemical equation?

Accepted Answer

2Fe2O3 + 3C → 4Fe + 3CO2

Question 24

In a balloon,when the temp of a gas increases, the volume of the gas will increase.Charles’ Law

Accepted Answer

True

Question 25

A mixture is made of two or more substances in the same place but are not chemically combined.

Accepted Answer

True

Question 26

Physical Science is made up of

Accepted Answer

chemistry and physics

Question 27

Metals are on the right side of the periodic table.

Accepted Answer

False

Question 28

Noticing that sugar tastes sweet is a(n)

Accepted Answer

Qualitative observation.

Question 29

What is the chemical name for thecompound with the formula Na2S?

Accepted Answer

sodium sulfide

Question 30

Substances that CANNOT be broken down chemically into other substances are

Accepted Answer

elements

Question 31

I will get an ____ on the Final.

Accepted Answer

A or B

Question 32

As the temperature of a gas decreases, the pressure of the gas will decrease.(Gay-Lussac’s Law)

Accepted Answer

Yes

Question 33

A theory is a large body of information that is made up of well-tested, verified hypotheses.

Accepted Answer

True

Question 34

When an atom loses an electron, itbecomes a

Accepted Answer

positive ion

PS S1 Final Review

Questions 34

PS S1 Final Review

Questions 34