Chem Vocab 4-6

Question 1

Strong Acid (Base)

Answer 1

Completely dissociates when dissolved in water

Question 2

Weak Acid (Base)

Answer 2

Does not fully dissociate when dissolved in water

Question 3

Arrhenius Acid

Answer 3

A substance that produces H+ (H3O) in water

Question 4

Arrhenius Base

Answer 4

A substance that produces OH- in water

Question 5

Brønsted Acid

Answer 5

A proton donor

Question 6

Brønsted Base

Answer 6

A proton acceptor

Question 7

System

Answer 7

The specific part of the universe that is of interest in the study

Question 8

Surroundings

Answer 8

The rest of the universe outside the system

Question 9

Open System

Answer 9

Exchanges mass and energy, usually in the form of heat with its surroundings

Question 10

Closed System

Answer 10

Allows the transfer of energy (heat) but not mass

Question 11

Isolated System

Answer 11

Does not allow the transfer of either mass or energy

Question 12

Thermal Energy

Answer 12

The energy associated with the random motion of atoms and molecules

Question 13

Chemical Energy

Answer 13

The energy stored within the bonds of a chemical substance

Question 14

Potential Energy

Answer 14

The energy available by virtue of an object’s position

Question 15

Kinetic Energy

Answer 15

the energy an object has due to its motion

Question 16

Law of Conservation of Energy

Answer 16

Energy can neither be created nor destroyed, but can only be transformed from one form to another

Question 17

Thermochemistry

Answer 17

The study of heat change on chemical reactions

Question 18

Exothermic Process

Answer 18

Any process that gives off heat- transfers thermal energy energy from the system to the surroundings

Question 19

Endothermic Process

Answer 19

Any process in which heat has to be supplied to the system from the surroundings