Answer:
There’s a particular way of writing what’s in a molecule called a chemical formula. The chemical formulae for all the elements that form each molecule and uses a small number to the bottom right of an element’s symbol to stand for the number of atoms of that element. For example, the chemical formula for water is H 2 O.
Explanation:
The answer that h are looking for is c
The answers from top to bottom right to left are
3,1,2,4
A control group is the group in an experiment that does not receive any sort of change, to then be compared to the other treated objects at the end of the study.
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