Peterson Quiz: Chemical bonds

Question 1

Chemical Reaction

Answer 1

The rearrangement of atoms in a molecular structure of a substance
~can involve one or more substances
~results in a different substance then when began

Question 2

Reactants

Answer 2

~The starting substances
~Usually on the left side of the equation

Question 3

Products

Answer 3

~The outcome or final results of the chemical reaction
~Usually on the right side of the equation

Question 4

Endothermic Reaction

Answer 4

The total making and breaking of bonds results in an absorption of energy (more activation energy)

Question 5

Exothermic

Answer 5

The total making and breaking of bonds results in a release of energy (less activation energy)

Question 6

Conservation of Matter

Answer 6

In chemical reactions, the # of atoms stays the same no matter how they are arranged
~Mass stays the same
~All atoms at the start must equal atoms at the end
~Amount of matter doesn’t change

Question 7

4 types of chemical reactions

Answer 7

1. Synthesis
2. Decomposition
3. Single Replacement
4. Double Replacements

Question 8

Synthesis

Answer 8

2 or more simple elements or compounds combine to form a more complex product

A + B —-> AB

Question 9

Decomposition

Answer 9

A compound breaks down into 2 or more simpler substances

AB —> A + B

Question 10

Single Replacement

Answer 10

One element is substituted for another element in a compound

AB + C —> B +AC

Question 11

Double Replacement

Answer 11

2 ionic compounds are exchanged, making 2 new compounds

AB + CD —-> AC + BD

Question 12

Catalyst

Answer 12

speeds up reaction rates (decreases activation energy needed

Question 13

3 other factors affecting reaction rate

Answer 13

1. Concentration
2. Surface Area
3. Temperature