Question 1

Formed when two or more substances combine, but a chemical reaction does NOT occur.

Accepted Answer

Mixture

Answer

Compound

Answer

Element

Question 2

A substance that cannot be broken down into simpler substances by physical or chemical means.

Accepted Answer

Element

Answer

Mixture

Answer

Compound

Question 3

Formed when two or more elements combine to form a new substance. This change occurs through a chemical reaction.

Accepted Answer

Compound

Answer

Mixture

Answer

Element

Question 4

This image represents a(an)

Accepted Answer

Compound

Answer

Element

Answer

Mixture

Question 5

This image represents a(an)

Accepted Answer

Mixture

Answer

Element

Answer

Compound

Question 6

This image represents a(an)

Accepted Answer

Mixture

Answer

Compound

Answer

Element

Question 7

This image represents a(an)

Accepted Answer

Element

Answer

Mixture

Answer

Compound

Question 8

Does the following image represent a physical or chemical change?

Accepted Answer

Chemical

Answer

Physical

Question 9

Does the following image represent a physical or chemical change?

Accepted Answer

Chemical

Answer

Physical

Question 10

Which of the following is an example of a chemical change?

Accepted Answer

an iron bridge turning brownish-red over the years

Answer

a solid rock melting into magma

Answer

a chunk of metal being hammered until its flat

Answer

a piece of chalk being crushed into a powder

Question 11

Flashback Time!  We're stepping it up a notch!!  What is the net force acting upon the block?  Don't forget what you have learned in previous weeks!

Accepted Answer

5N

Answer

15N

Answer

4N

Answer

20N

Question 12

What is the net force acting upon the block?

Accepted Answer

20N

Answer

50N

Answer

0N

Answer

25N

Question 13

What phase of matter has a definite volume, but no definite shape?

Accepted Answer

Liquid

Answer

Gas

Answer

Plasma

Answer

Solid

Question 14

What process let's you see your breathe when the air is cold?

Accepted Answer

Condensation

Answer

Melting

Answer

Vaporization

Answer

Boiling

Question 15

Remember the formula density = mass/volume.  Silver has a density of 10.5 grams/cm^3 and gold has a density of 19.3 g/cm^3. Which would have the greater mass, 5cm^3 of silver (volume) or 5cm^3 of gold (volume)?

Accepted Answer

Gold; Mass of 96.5g

Answer

Silver; Mass of 52.5g

Answer

Silver: Mass of 2.10 G

Answer

Gold; Mass of 3.86g

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