Unit 1: Introduction to Chemistry, WS 1-3 Quiz Review

Question 1

Changing from a solid to a liquid

Accepted Answer

Melting

Question 2

Is this a physical or chemical change?

Accepted Answer

Chemical

Question 3

The following image is an example of?

Accepted Answer

A heterogeneous mixture

Question 4

These are examples of heterogeneous mixtures

Accepted Answer

True

Question 5

Finish the sentence: Mass...

Accepted Answer

Doesn't change depending on gravity

Question 6

_______ can be separated by physical means.

Accepted Answer

A mixture

Question 7

In a _______ mixture, the material has the same composition throughout.

Accepted Answer

homogenous

Question 8

Carbonated Beverages are a homogeneous mixture

Accepted Answer

True

Question 9

Which is an example of a chemical property?

Accepted Answer

flammability

Question 10

Density is physical property.

Accepted Answer

True

Question 11

Weight is actually a....

Accepted Answer

force

Question 12

Elements can be broken down into simpler substances.

Accepted Answer

False

Question 13

Element, Compound, or Mixture?

Accepted Answer

Element

Question 14

Which is an example of a Physical property

Accepted Answer

Mass

Question 15

anything that has mass and takes up space

Accepted Answer

matter

Question 16

Which of these is a Chemical Property

Accepted Answer

Combustible

Question 17

Air is an example of?

Accepted Answer

A homogenous mixture

Question 18

Odor is a example of a Physical property

Accepted Answer

True

Question 19

Element, Compound, or Mixture?

Accepted Answer

Element

Question 20

Table salt is an example of?

Accepted Answer

A compound

Question 21

Physical or Chemical property? Ductility - the ability to be stretched into wire.

Accepted Answer

Physical

Question 22

Element, Compound, or Mixture?

Accepted Answer

Compound

Question 23

Granite rock is an example of?

Accepted Answer

A heterogeneous mixture

Question 24

Is this a physical or chemical change?

Accepted Answer

Physical

Question 25

___________________ is a physical property.

Accepted Answer

color

Question 26

Is this a physical or chemical change?

Accepted Answer

Chemical

Question 27

Which classification(s) of matter is(are) pure substances?

Accepted Answer

Elements and compounds

Question 28

Stainless steel is an example of ________?

Accepted Answer

Homogeneous mixture

Question 29

In a _______ mixture, each substance can be easily distinguished.

Accepted Answer

heterogeneous

Question 30

What is a Homogeneous mixture?

Accepted Answer

All parts of the mixture have been mixed together and cannot be seen.

Question 31

Copper metal is an example of?

Accepted Answer

An element

Question 32

Element, Compound, or Mixture?

Accepted Answer

Mixture

Question 33

A material made of combined substances that each retain their own properties is called?

Accepted Answer

A mixture

Question 34

Physical or Chemical property? combustibility

Accepted Answer

Chemical

Question 35

What is the difference between an element and a compound?

Accepted Answer

Compounds are made of more than one type of atom.

Question 36

Which is an example of a chemical property

Accepted Answer

Reacts with air

Question 37

Is this a physical or chemical change?

Accepted Answer

Chemical

Question 38

an example of a solid is

Accepted Answer

bricks

Question 39

Heterogeneous mixture

Accepted Answer

a mixture of different properties that are not smooth

Question 40

The particles in a gas

Accepted Answer

fly everywhere

Question 41

In a mixture, the substances ___________ their identities.

Accepted Answer

retain

Question 42

The law of conservation of mass means that

Accepted Answer

mass is always conserved

Question 43

Most materials we use and encounter daily are ________.

Accepted Answer

Mixtures

Question 44

A homogeneous mixture:

Accepted Answer

Unable to see the different types of matter

Question 45

Sea water is an example of?

Accepted Answer

A homogenous mixture

Question 46

Is this a physical or chemical change?

Accepted Answer

Physical

Question 47

A compound is represented by its ________.

Accepted Answer

chemical formula

Question 48

Any material consisting of only one type of atom is classified as what?

Accepted Answer

An element

Question 49

What is a Hypothesis?

Accepted Answer

a tentative explanation for observations or a phenomenon

Question 50

When different atoms combine in whole number ratios _______ are formed.

Accepted Answer

compounds

Question 51

What must a good hypothesis be?

Accepted Answer

Testable

Question 52

Liquids have a lower density than gases because liquid particles can slide past eachother.

Accepted Answer

False

Question 53

A mixture is a chemical bonding of substances.

Accepted Answer

False

Unit 1: Introduction to Chemistry, WS 1-3 Quiz Review

Questions 53

Unit 1: Introduction to Chemistry, WS 1-3 Quiz Review

Questions 53