Answer:
(1) All living things are made up of cells, (2) Cells are the smallest units (or most basic building blocks) of life, and (3) All cells come from preexisting cells through the process of cell division.
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In order for a chemical reaction to being, two reactants must come into contact with one another. Reactions<span> occur when two or more molecules interact and the molecules change. Bonds between atoms are broken and created to form new molecules</span>
The acids have more H+ while bases have more OH-. About pH, typically under room temperature, when a solution has pH<7, it is acid. When pH>7, it is base. And when pH=7, it is neutral.
