Write in the process used to separate each mixture Mixture
Process
salt + water
sugar + water
rice + pasta shapes
sand + water
four + rice
paperclips + sawdust
​

Salt and water can be separated by boiling

Explanation:

When the water boils the salty water it heats it up and separates the mixture and only the salt will remain and the water will evaporate

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.