In many areas of the united states the rate of soil erosion is greater than the rate of soil formation. if this is true, then soil should be considered a resource. a) natural b) non-renewable c) recyclable d) renewable

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.

catya that's not even a b or c