A/an is the smallest unit of matter that has the characteristics of a chemical element. Question 10 options:
A)  electron
B)  molecule
C)  atom
D)  proton​

When a septic tank backs up a goes in to clean it out

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.

Can you me with this i really appreciate it