Chapter 6 Chemical Reactions

Question 1

Reactant

Answer 1

A substance or molecule that participates in a chemical reaction

Question 2

Product

Answer 2

A substance that forms in a chemical reaction

Question 3

Chemical Energy

Answer 3

The energy released when a chemical compound reacts to produce new compounds

Question 4

Exothermic Reaction

Answer 4

A chemical reaction where heat is released to surroundings

Isooctane-oxygen is an example

Question 5

Endothermic Reaction

Answer 5

A chemical reaction that requires heat

Hydrated Barium Hydroxide and Ammonium Nitrate

Question 6

Synthesis Reaction

Answer 6

A reaction in which 2 or more substances combine to form a new compound

Question 7

Decomposition Reaction

Answer 7

A reaction where a single compound breaks down to form 2 or more simpler substances

Question 8

Electrolysis

Answer 8

The process where an electric current is used to make a chemical reaction, like the decomposition of water

Question 9

Combustion Reaction

Answer 9

The oxidation reaction of an organic compound, in which heat is released

Question 10

Single-Displacement Reaction

Answer 10

A reaction where on element or radical takes the place of another element or radical in a compound

Question 11

Double-Displacement Reaction

Answer 11

A reaction where a gas, a solid precipitate, or a molecular compound forms from the apparent exchange of atoms or ions between 2 compounds

Question 12

Oxidation-Reduction Reaction

Answer 12

Any chemical change where one species is oxidized (loses electrons) and another species is reduced (gains electrons); called redox reaction

Question 13

Radical

Answer 13

An organic group that has one or more electrons available for bonding

Question 14

Reduced

Answer 14

To gain electrons

Question 15

Oxidized

Answer 15

To lose electrons

Question 16

Chemical Equation

Answer 16

A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

Question 17

Mole Ratio

Answer 17

The relative number of moles of the substances required to produce a given amount of product in a chemical reaction

Question 18

Coefficient

Answer 18

A multiplier or factor that measures some property

Question 19

Law of Conservation of Mass

Answer 19

Mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations

Question 20

Law of Definite Proportions

Answer 20

Given chemical compound always contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation

Question 21

Catalyst

Answer 21

A substance that changes the rate of a chemical reaction without being consumed or changed significantly

Question 22

Enzyme

Answer 22

A type of protein that speeds up the metabolic reactions in plants and animals without being permanently changed or destroyed

Question 23

Substrate

Answer 23

A part, substance, or element that lies beneath and supports another part, substance or element; the reactant in reactions catalyze by enzymes

Question 24

Chemical Equilibrium

Answer 24

A state of balance where the rate of the reverse reaction and the concentrations of products ms reactants remain unchanged