Chemical and physical change Walter.M

Front

What is an Entothermic reaction?

Back

A reaction that absorbs energy around it and cools the surroundings.

Front

Which is a substance that enters into a chemical reaction (ingredient)

Back

reactant

Front

What is an exothermic reaction?

Back

A reaction that releases energy into the environment and feels hotter.

Front

What is the missing number? Options: 50 g, 100 g, 200 cm, 150 g

Back

100 g

Front

Which is a chemical reaction? Ice melting, metal rusting, A tree being cut, Dissolving sugar in water

Back

metal rusting

Front

A solution is a ___________ mixture.

Back

Homogeneous

Front

A solvent is the part of the solution that is dissolved.

Back

False

Front

The unit for mass is:

Back

Grams

Front

A chemical reaction occurs when...

Back

bonds break and new bonds form, which requires or releases energy.

Front

When you're writing a chemical reaction the arrow represents what?

Back

Chemical reaction has occured