Lesson 4.4

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1 point

One example of a chemical change is

filtering a mixture

crushing a can

burning wood

boiling wter

1 point

The only sure evidence that a chemical reaction has occurred is

changes in properties

a color change

the production of one or more new substances

the formation of a gas

1 point

If you heat a liquid and measure the temperature at which it boils, you are measuring

physical property

molecular property

chemical property

atomic property

1 point

Fireworks exploding in the sky and giving off light are an example of

endothermic reaction

change in mass

exothermic reaction

chemical change

1 point

Which of the following is not a physical property

high melting point

malleable

ductile

brittle

1 point

The change in which ice absorbs energy and melts is an

chemical change

change in mass

endothermic change

exothermic change

1 point

What happens when chemical bonds break and new bonds form?

filtering a mixture

matter is destroyed

crusing a can

a chemical change

1 point

One example of a physical change is

roasting marshmallows

baking cookies

burning paper

dissolving salt in water

1 point

If you describe methane as a gas that easily catches fire, you are describing a

physical property

state of matter

chemical property

10.

1 point

Every chemical reaction involves a change in

energy

state

concentration

mass

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