A chemical formula tells what and how many of each...

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Multiple Choice

A chemical formula tells what and how many of each...

Explanation:
The main idea is that a chemical formula shows which elements are present and how many atoms of each are in a unit of the substance. It uses element symbols and small numbers (subscripts) to indicate the quantity of each atom. If an element has no subscript, it appears once. For example, in H2O there are two hydrogen atoms and one oxygen atom per molecule. This is different from a chemical bond (which describes how atoms are held together), an ion (a charged atom), or isotopes (atoms of the same element with a different number of neutrons). So the term that describes showing what elements and how many atoms of each are in a substance is the chemical formula.

The main idea is that a chemical formula shows which elements are present and how many atoms of each are in a unit of the substance. It uses element symbols and small numbers (subscripts) to indicate the quantity of each atom. If an element has no subscript, it appears once. For example, in H2O there are two hydrogen atoms and one oxygen atom per molecule. This is different from a chemical bond (which describes how atoms are held together), an ion (a charged atom), or isotopes (atoms of the same element with a different number of neutrons). So the term that describes showing what elements and how many atoms of each are in a substance is the chemical formula.

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