Rates, Types, Balancing Reations

Question 0

Physical change

Answer 0

a characteristic of matter that you can observe or measure without changing the indentity of the matter: (changing the states of matter)

Question 1

Chemical change

Answer 1

A change in matter in which the substances that make up the matter change into other substances with different chemical and physical properties. (Foaming, fizzing, temperature change, color change, fire)

Question 2

Endothermic

Answer 2

Chemical reactions that absorb thermal energy

Question 3

Exothermicchemic

Answer 3

Chemical reactions that release thermal energy

Question 4

Catalyst

Answer 4

Substance that increased the reaction rate

Question 5

Inhibitor

Answer 5

Substance that decreases the reaction rate

Question 6

Increases reaction rate

Answer 6

Surface area, concentration/pressure, temperature

Question 7

Synthesis

Answer 7

Two or more substances combine to form a new compound. Ca + O2 –> CaO

Question 8

Decomposition

Answer 8

One compound breaks down and forms two or more substances AlCl3 –> Al + Cl

Question 9

Combustion

Answer 9

A chemical reaction in which a substance combines with oxygen and releases energy CH4 + O2 –> CO2,+ H2O

Question 10

Single replacement

Answer 10

One element replaces another element in a compound Mg + HCL –> MgCl2 + H2

Question 11

Double replacement

Answer 11

Two or more substances switch, forming new compound BaBr2 + Na2So4 + BaSo4 + NaBr

Question 12

Ca + O2 –> CaO

Answer 12

2Ca + O2 –> 2CaO2

Question 13

AlCl3 + Al + Cl2

Answer 13

2AlCl3 + 2Al + 3Cl2