Rates, Types, Balancing Reactions

Question 0

Physical Change

Answer 0

A characteristic of matter that you can observe or measure without changing the identity 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, temp change, color change, fire)

Question 2

Endothermic

Answer 2

Chemical reactions that absorb thermal energy.

Question 3

Exothermic

Answer 3

Chemical reactions that release thermal energy

Question 4

Catalyst

Answer 4

Substances that increases the reaction rate

Question 5

Inhibitor

Answer 5

Substance that decreases the reaction rate

Question 6

Increase reaction rate

Answer 6

Surface area, concentration/pressure, tempeture

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 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 + HCI ➡️ 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 + 3Cl