Chapter 2 matter.

Question 1

Mass

Answer 1

The Amount of matter contained within an object

Question 2

Properties

Answer 2

The qualities of a thing, specially those qualities common to a group of things

Question 3

Extensive properties

Answer 3

Qualities that are or depend on the amount of the substance. (Ex flexibility of a metal sheet, depend on thickness)

Question 4

Intensive property

Answer 4

Qualities that do not depend on the amount of the substance (ex. Melting point)

Question 5

Physical property

Answer 5

One that describes something that is physical about a substance ex. Melting point, boiling point.

Question 6

Chemical property

Answer 6

one that describes a chemical property or the tendency of a chemical to react (ex flammability, stability)

Question 7

Kinetic energy:

Answer 7

Any form of energy that can not be stored

Question 8

Mechanical energy

Answer 8

A type of kinetic energy that all particles possess because of their continuous motion.

Question 9

Thermal energy

Answer 9

The total mechanical energy of an objects or a material’s particles.

Question 10

Temperature

Answer 10

The average mechanical energy of the particles that compose a material

Question 11

Heat.

Answer 11

The energy transferred from one body to another because of a difference in temperature.

Question 12

Operational definition

Answer 12

Observable characteristics that help us to classify whether something belongs in a specific group or not.

Question 13

Conceptual definition

Answer 13

Explain what the operational definition describes

Question 14

Melting point

Answer 14

The temperature of its solid as it changes into a liquid.

Question 15

Vapour

Answer 15

The gas that forms above substance when it is boiled.

Question 16

Organic compound

Answer 16

Any compound that contains both carbon and hydrogen

Question 17

Binary compounds

Answer 17

A compound composed only of 2 elements,

Question 18

Acid

Answer 18

Any compound containing a hydrogen bonded to an anion

Question 19

Base

Answer 19

Any compound containing a hydroxide ion

Question 20

Salt

Answer 20

Any ionic compound other than a hydroxide

Question 21

Solute

Answer 21

The things that has been dissolved in the solution

Question 22

Solvent

Answer 22

What the solute is dissolved in.

Question 23

Tyndall effect

Answer 23

The effect where a colloid can scatter and reflect a beam of light.

Question 24

Buoyancy

Answer 24

The upward force exerted By a medium

Question 25

Decanting

Answer 25

Carefully pouring off the liquid and leaving the sediment

Question 26

Inertia

Answer 26

The resistance to change of motion

Question 27

Chromatography

Answer 27

Separates the substance by having a flowing liquid or gas Carry the substances at different rates through the stationary phase

Question 28

Capillary action

Answer 28

The tendency of a liquid to be sucked into a small opening in a tube.

Question 29

Formula for rf

Answer 29

Distance of substance/distance of solvent

Question 30

Distillation

Answer 30

Any process that separates a mixture by using different vapor pressures or boiling points.

Question 31

Fractional distillation

Answer 31

The act of repeating distillation many times within one device

Question 32

Froth flotation

Answer 32

Adding a chemical to the mixture to have it bond with the substance you want and bring it to the surface.

Question 33

Matter

Answer 33

Anything that has space and takes up mass

Question 34

A town builds a bridge, but this bridge can only hold three people at a time or it will collapse. One night, a baker, a flourist and a butcher go on the bridge, and it collapses. Why did it collapse?

Answer 34

One night , as in a “knight” , goes on the bridge with the other three people, therefore four people go on the bridge making it collapse. (Evil pun😜)