Chemical Reactions #2

The process of rearranging atoms to form new substances is known as a...?

• physical change

• chemical reaction

The reactants in the pictured chemical equation are:

• 
• 

The products in the pictured chemical equation are:

• 
• 

You know that a chemical reaction is occurring here between Iodine and Aluminium because you see....(Pick 3)

• purple colour

• ice formation

• a yellow precipitate

• smoke

• fire

We know that there was a chemical reaction occurring when 2 clear liquids were mixed together, due to the production of a ______?

• solid

• liquid

• gas

• precipitate

A precipitate is a _____ that forms when 2 liquids react together.

• solid

• liquid

• gas

• plasma

How is a chemical change different from a physical change?

• there is no difference

• a chemical change creates a new substance

• a physical change creates a new substance

Which of the following is a compound?

• Co

• C

• O₂

• CO₂

A physical change is...?

• is just like a chemical reaction

• a change that results in the formation of new chemical substances

• when substances undergo a physical change without alteration of their chemical composition

Which example is a chemical change?

• baking powder fizzing

• ice melting

• water boiling

• sugar cube dissolving