1st Semester Final Review

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

All the hyrdrocarbons in your diet fall into the following categories:

When an atom loses an electron, it becomes a

What type of reaction is FeS + 2HCl à FeCl2 + H2S

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

In a balloon, when the temperature of a gas increases, the volume of the gas will increase.

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

Adding a solute to a solvent will raise the freezing point of the solvent.

Noticing that sugar tastes sweet is a(n)

Fusion is the process in which two nuclei combine and make one new nucleus

A covalent bond in which electrons are unequally spread around the molecule is

In water, bases form

Mixing an acid and a base (neutralization) produces

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

Metals are on the right side of the periodic table.

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

All compounds that contain the elements carbon and hydrogen are called

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

Vinegar and baking soda are mixed, new substances form and beaker became cooler to the touch

Substances that CANNOT be broken down chemically into other substances are

One example of a physical change is:

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

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

Miss M's favorite animal are

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

The substances listed on the left side of a chemical equation are the

Which of the following is a balanced chemical equation?

pumpkin pie : cool whip :: lemon pie :

What is an indicator?

During fission, atomic nuclei of unstable isotopes

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

A molecule is considered nonpolar when one side of an atom is more negative than the other side

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

If you have a strong acid and a weak acid, then the

Titanic : ship :: Hindenburg :

Physical Science is made up of

A scientific law is a close agreement between experts and is also revisable.

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

The elements that do NOT form compounds are

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

When sugar is dissolved in water, the sugar is the

How would a solute affect the boiling point of water?

"Atoms have a nucleus with positive charge with electrons flying aimlessly around the outside"