Ch. 1 Matter and Change

Question 1

Which of the following materials is a pure substance?

Accepted Answer

diamond

Question 2

A blend between 2 or more different kinds of matter,each having their own identity & properties

Accepted Answer

Mixture

Question 3

Which of the 5 major divisions of chemistry requires the most extensive mathematical background

Accepted Answer

Physical Chemistry

Question 4

A mixture that is not uniform in composition, like lucky charms.

Accepted Answer

Heterogeneous

Question 5

This typically involves the production and use of products that improve our quality of life...

Accepted Answer

technological development

Question 6

Which of the following is a pure substance?

Accepted Answer

hydrogen

Question 7

A paint sample needs tested to see what is in it, what type of chemist would I go to?

Accepted Answer

Analytical Chemistry

Question 8

Which elements are most likely to undergo the same reactions and have the same properties

Accepted Answer

Groups

Question 9

Which of the following is NOT a pure substance?

Accepted Answer

Apple juice

Question 10

How will the mass of a rusted iron nail compare with the mass of the same nail before it rusted

Accepted Answer

the rusted nail will have the greater mass

Question 11

If element X is ductile and conducts electricity, would it be a...

Accepted Answer

Metal

Question 12

Separating two liquids from each other by using boiling points is called...

Accepted Answer

Distillation

Question 13

Which of the following is NOT a physical property?

Accepted Answer

it is composed of hydrogen and oxygen

Question 14

The study of the composition and structure of matter is the domain of which field of science?

Accepted Answer

Chemistry

Question 15

Which state of matter takes both the shape and volume of its container?

Accepted Answer

gas

Question 16

What types of observations do you make yourself?

Accepted Answer

direct

Question 17

Which of the following is true for all chemical reactions?

Accepted Answer

total mass of reactants equals total mass of products

Question 18

Which of the following is a chemical property of an antacid tablet?

Accepted Answer

ability to neutralize acid

Question 19

A type of reaction that a substance undergoes but does not change chemically.

Accepted Answer

Physical Change

Questions 19