How many molecules are in 0.54 molecules of ch4

answer: i would say b.

explanation:

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

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.