Question 1

speed up a chemical reaction (general name)

Accepted Answer

catalyst

Question 2

speeds up chemical reaction in living organisms

Accepted Answer

enzyme

Question 3

A starting material in a chemical reaction

Accepted Answer

reactants

Question 4

get made in a chemical reaction

Accepted Answer

products

Question 5

reactants in combustion rxn

Accepted Answer

CxHy + O2

Question 6

decomposition reaction

Accepted Answer

AB --> A + B

Question 7

synthesis reaction

Accepted Answer

A + B --> AB

Question 8

double replacement reaction

Accepted Answer

AB + CD --> AD + CB

Question 9

single displacement reaction

Accepted Answer

AB + C --> CB + A

Question 10

having 2 atoms

Accepted Answer

diatomic

Question 11

only diatomic elements

Accepted Answer

H, N, O, F, Cl, Br, I

Question 12

small numbers that are NEVER changed to balance equation ; tells number of atoms

Accepted Answer

subscripts

Question 13

numbers that are placed in front to balance equation

Accepted Answer

coefficients

Question 14

chemical equation that is NOT balanced

Accepted Answer

skeleton equation

Question 15

means 4 atoms

Accepted Answer

tetratomic

Question 16

means 8 atoms

Accepted Answer

octatomic

Question 17

states that mass is neither created or destroyed ; # reactants must equal # products

Accepted Answer

law of conservation of mass

Question 18

means__one atom

Accepted Answer

monatomic

Question 19

only tetratomic elements

Accepted Answer

P & As

Question 20

only octatomic element

Accepted Answer

S

Question 21

products of a combustion rxn

Accepted Answer

CO2 + H2O

Related quizzes