Quiz about 2020 Physical and Chemical Change Review

Question 1

Evidence of Chemical Change.

Accepted Answer

New Substance

Answer

Size change

Answer

State change

Answer

Mixture

Question 2

Evidence of a physical change.

Accepted Answer

Shape Change

Answer

New substance

Answer

Light produced

Answer

Gas released.

Question 3

Water boiling is a _______ change.

Accepted Answer

Physical Change

Answer

Chemical Change

Question 4

A substance that has mass and takes up space.

Accepted Answer

Matter

Answer

Energy

Answer

Protery

Answer

Endothermic

Question 5

Is glass breaking a chemical or phyiscal change?

Accepted Answer

physical

Answer

chemical

Question 6

Is mixing lemonade powder with water a physical or chemical change?

Accepted Answer

physical

Answer

chemical

Question 7

Is corroding metal a chemical or physical change?

Accepted Answer

chemical

Answer

physical

Question 8

Are fireworks exploding a physical or chemical change?

Accepted Answer

chemical

Answer

phyiscal

Question 9

Is burning toast a chemical or physical change?

Accepted Answer

chemical

Answer

physical

Question 10

Is melting ice cream a phyiscal or chemical change?

Accepted Answer

physical

Answer

chemical

Question 11

Which of the following is not a compound?

Accepted Answer

Cl

Answer

HCl

Answer

NaCl

Answer

CO2

Question 12

Which of the following represents an element?

Accepted Answer

H2

Answer

H2O

Answer

NaCl

Answer

CaCO3

Question 13

How many reactants are in A + B ---> C ?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 14

2H₂ + O₂ ----> 2H₂O What is the product?

Accepted Answer

2H2O

Answer

------>

Answer

2H₂+ O₂

Question 15

If reaction starts with 20g of reactants it should produce...

Accepted Answer

a total of 20g of product

Answer

a total of 40g of product

Answer

a total of 10g of product

Answer

a total of 80 g of product

Question 16

Jason poured 500 grams of water into a container and tightly sealed it. The water was allowed to freeze. Which is most likely true about the ice that formed?

Accepted Answer

The mass of the ice is the same as the mass of the water.

Answer

The mass of the ice is greater than the mass of the water.

Answer

The ice formed is a different substance than the water.

Answer

The ice formed is the same temperature as the water.

Question 17

The Law of Conservation of Mass states that ALL matter....

Accepted Answer

cannot be created nor destroyed but can change form

Answer

can be created and destroyed

Answer

cannot be created nor destroyed but can be transfered

Answer

can be created but not destroyed

Question 18

What type of mixture is this?

Accepted Answer

heterogeneous

Answer

homogeneous

Question 19

What type of mixture is this?

Accepted Answer

heterogeneous

Answer

homogeneous

Question 20

What type of mixture is this?

Accepted Answer

homogeneous

Answer

heterogeneous

Question 21

What type of mixture is this? (vanilla ice cream)

Accepted Answer

homogeneous

Answer

heterogeneous

Question 22

If there are 100g of reactants how much products will be produced

Accepted Answer

100g

Answer

50g

Answer

25g

Answer

30g

Question 23

In a closed system, a chemical reaction takes place.  The mass of the reactants in the beginning of the reaction is 25g.  What does the mass have to be in the end of the reaction in order to follow the law of conservation of mass?

Accepted Answer

25g

Answer

You can't tell with the given information.

Answer

30g

Answer

15g

2020 Physical and Chemical Change Review

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