Chapter 1

Question 1

Matter

Answer 1

Anything that has mass and occupies a space.

Question 2

Density

Answer 2

d=mass/volume
d=g/mL

Question 3

Physical Property

Answer 3

Recognizable difference in the appearance but composition and identity does not change.
Exp. melting point, boiling point, density

Question 4

Chemical Property

Answer 4

Conversion into one or more different substance e.g. chemical reaction.
Exp. flammability, toxicity

Question 5

Intensive Property

Answer 5

Independent of the quantity.
Exp. density, color, melting point, boiling point

Question 6

Extensive Property

Answer 6

Dependent of the quantity.
Exp. mass volume

Question 7

Element

Answer 7

Cannot be reduced/simplified and still exabit the same properties/characteristics. Unit: ATOM

Question 8

Compound

Answer 8

two or more elements in a defined ratio held together through chemical bonds; ionic or covalent.
Exp. H2O > 2:1

Question 9

Chemical Reaction

Answer 9

Conversation of one or more substances into one or more different substances.
Exp. rearrangement, removal, replacement.

Question 10

Solid

Answer 10

Particle very close with definite shape and volume.

Question 11

Liquid

Answer 11

Particles somewhat close with definite shape not volume.

Question 12

Gas

Answer 12

Particles widely separated no definite shape or volume.

Question 13

Accuracy

Answer 13

Degree of measurement of true value.

Question 14

Precision

Answer 14

Measure of agreement between replicate measurements. (grouping)

Question 15

Mass

Answer 15

gram: g

Question 16

Distance

Answer 16

meter: m

Question 17

Time

Answer 17

seconds: s

Question 18

Volume

Answer 18

liter: L