Please help!! scientific theory – an of why a natural phenomenon occurs that is well-supported by repeated experimentation over time  For example, the explanation of gravity happens. scientific law – a scientifically acknowledged confirmed by repeated experimental observations  For example, the explanation of gravity affects objects.

Explanation:

Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena.[1] The term law has diverse usage in many cases (approximate, accurate, broad, or narrow) across all fields of natural science (physics, chemistry, astronomy, geoscience, biology). Laws are developed from data and can be further developed through mathematics; in all cases they are directly or indirectly based on empirical evidence. It is generally understood that they implicitly reflect, though they do not explicitly assert, causal relationships fundamental to reality, and are discovered rather than invented.[2]

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;