Physical And Chemical Characteristics

Question 0

What is a chemical property?

Answer 0

Describe the behavior that a substance displays when it changes.

Question 1

What is a physical property?

Answer 1

A property that can be described using five senses.

Question 2

What is a physical change?

Answer 2

A change in the physical properties of a new substance - no new substance is formed.

Question 3

What is a chemical change?

Answer 3

I change in which a new substance is formed.

Question 4

What are some clues that a chemical change has a occured?

Answer 4

1. Gas released
2. Change of colour
3. Energy is exchanged
4. A precipitate is formed
5. Hard to reverse

Question 5

A physical change is a change of matter from one form to another without a change and chemical properties. T or F?

Answer 5

True

Question 6

A physical change is a change that occurs when a substance changes composition by forming one or more new substances. T or F?

Answer 6

False

Question 7

Color change is evidence that a chemical change may have occurred. T or F?

Answer 7

True

Question 8

Fizzing or foaming is evidence that a chemical change may have occurred

Answer 8

True

Question 9

Production of light is evidence that is physical change may have occurred

Answer 9

False; Chemical change

Question 10

Production of heat or light is evidence that chemical change may have occurred. T or F?

Answer 10

True

Question 11

A change in order is evidence that a physical change may have occurred. T or F?

Answer 11

False; chemical change

Question 12

Chemical changes can be reversed by physical changes. T or F?

Answer 12

False; Chemical changes cannot be reversed

Question 13

Physical change or chemical change?; you cut your hair

Answer 13

Physical change

Question 14

Physical change or chemical change? ; making a peanut pretzel and cereal mixture

Answer 14

Physical change

Question 15

Physical change or chemical change?; baking soda reacts with vinegar and forms a gas

Answer 15

Chemical change

Question 16

Physical change or chemical change? ; and aspirin is crushed into fine powder

Answer 16

Physical change

Question 17

Physical change or chemical change? ; copper turns green when exposed to the environment?

Answer 17

Chemical change

Question 18

Physical change or chemical change? ; to clear liquids are mixed and a yellow color forms

Answer 18

Chemical change

Question 19

Physical change or chemical change? ; baking cookies

Answer 19

Chemical change

Question 20

Physical change or chemical change? ; diamonds are used to scratch glass

Answer 20

Physical change

Question 21

Chemical change or physical change? ; A tree burns to form ashes

Answer 21

Chemical change

Question 22

Physical change or chemical change? ; food spoiling

Answer 22

Chemical change

Question 23

Physical change or chemical change? ; I candle burning

Answer 23

Chemical change

Question 24

Physical change or chemical change? ; A candle melting

Answer 24

Physical change