Concept 2

Question 1

What’s a physical property?

Answer 1

Properties that can be observed directly or measured without changing the chemical compound

Question 2

What’s melting point?

Answer 2

Temp at which a solid becomes a liquid

Question 3

What’s boiling point?

Answer 3

Temp at which liquid becomes a gas

Question 4

What’s viscosity?

Answer 4

A fluids resistance to flow

Question 5

What’s solubility?

Answer 5

A measure of how well a solute dissolves in a solvent

Question 6

What’s a solute?

Answer 6

What is being dissolved

Question 7

What’s a solvent?

Answer 7

What is doing the dissolving

Question 8

What’s a solution?

Answer 8

The result

Question 9

What is density?

Answer 9

Measure of compactness or consistency of a material

Question 10

What is a chemical property?

Answer 10

Properties that can only be observed or measured by changing the chemical identity of a substance

Question 11

What’s combustibility?

Answer 11

How easily a substance will set on fire

Question 12

What’s reactivity?

Answer 12

How easily a substance reacts, usually with an acid or base

Question 13

What’s oxidation?

Answer 13

How easily a substance reacts with oxygen

Question 14

What’s physical change?

Answer 14

A change in a substance that only effects it’s physical properties

Question 15

What’s chemical change?

Answer 15

A change in the substance that effects its chemical properties thus a chemical reaction occurs and a new substance is formed

Question 16

What’s a chemical reaction?

Answer 16

Process by which the atoms of one or more substances are rearranged to form different substances

Question 17

What’s law of conservation of matter?

Answer 17

Matter is neither destroyed or created, only changes forms

Question 18

What’s evidence of a chemical change?

Answer 18

Release of light, temp change, odor change, sudden change of color, gas given off, sudden appearance of a solid