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Which is not true about chemical formulas? If there is only one atom of a certain type,no 'I' is used. The number of each type of atom in a molecule is indicated with a subscript in a chemical formula. A chemical formula expresses the number and types of atoms in a molecule. All chemical formulas are parentheses

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Answer:

All chemical formulas are parentheses

Explanation:

It is not true that all chemical formulas have parentheses. There are several chemical formulas that do not have parentheses.

A chemical formula is used to represent the atoms present within a compound or molecule.

It also specifies the number of atoms present.

Some chemical formula can have parentheses. Some of formulas lacks parentheses.

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