Why does dew usually happen at night? (2 points) because it is dark because the sun is not out to evaporate the dew because the moonlight pulls the water out of the air because the temperature decreases at night

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.

give me abc and i will get it for u.