chapter 6 Chemical Reactions Jacob Cheatum

Question 0

What is a product ?

Answer 0

A product is the result of a chemical reaction .

Question 1

What is a Reactant ?

Answer 1

A substance or molecule that is in a chemical reaction .

Question 2

What is chemical energy?

Answer 2

Chemical energy is what is released when a compound reacts with others to form new compounds .

Question 3

What is an exothermic reaction ?

Answer 3

A chemical reaction that releases heat to the surroundings . An example is in a isooctane -oxygen reaction because more energy is released as the products form to break the bonds in the reactants .

Question 4

What is an endothermic reaction ?

Answer 4

Is a reaction that must have heat to take place . Example - hydrated barium hydroxide combined with ammonium nitrate in a flask .

Question 5

Synthesis reaction

Answer 5

A reaction that requires two or more substances combine to make a new compound .

Question 6

Decomposition reaction

Answer 6

Is when a compound is broke down to form two or more simple substances .

Question 7

Electrolysis -

Answer 7

The process that a electric current is used to make a chemical reaction , such as the decomposition of water .

Question 8

Combustion reaction

Answer 8

Is the oxidation of an organic compound and when this happens heat is released .

Question 9

Single displacement reaction

Answer 9

Is when one of the elements in a compound is replaced by another .

Question 10

Double replacement reaction

Answer 10

Is when a reaction happens and the positive and negitive ions of the reactants switch places .

Question 11

Oxidation reduction reaction

Answer 11

Is a chemical reaction in which the oxidation number of a molecule , atom , or ion changes by loosing or gaining electrons .

Question 12

Radical

Answer 12

A atomic or molecular species that has unpaired electrons .

Question 13

Reduced

Answer 13

The gaining of electrons

Question 14

Oxidized

Answer 14

To bond chemically with oxygen

Question 15

Chemical equation

Answer 15

Is the representation of chemical reactions

Question 16

Mole ratio

Answer 16

Compares the moles of one substance to the amount of miles to another substance .

Question 17

Coefficient

Answer 17

The number in front of a variable

Question 18

Law of conservation of mass

Answer 18

States that mass can not be created or destroyed

Question 19

Law of definite proportions

Answer 19

States the a chemical compound always contains the exact same proportion of elements .

Question 20

Catalyst

Answer 20

Increases the rate of a reaction without it going any major changes

Question 21

Enzyme

Answer 21

Can produce a biochemical reaction .

Question 22

Substrate

Answer 22

A substance or layer that is under something happening .

Question 23

Chemical equal Librium

Answer 23

Is when the state in both reactants are present and have no farther tendency to change .