Question

What is chemical formula

Answer 1

it is a way of presenting information about the chemical proportion of atoms of that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs.

example:-
caco3-calcium carbonate
calcium -1 atom . c-1 atom .o-3 atom

Answer 2

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• The Chemical Formula of a substance is based on the composition of that substance.It indicates the type and number of atoms of each kind present in that substance.