
The 2 in front of
in
is <u>Coefficient.</u>
_____________________________
The
after
in the same equation is <u>sub </u><u>script</u><u>.</u>
_____________________________
There are two atoms of
in 
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Answer:
2HNO3 +Na2CO3 → CO2 + H2O + 2NaNO3
A . O2- because it is a negatively charged ion
Answer:
i cant see it very much i dont think no one can
Explanation:
K is Potassium
Cl is Chlorine
There are 2 elements.