Counting Atoms

Front

What is a chemical formula?

Back

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Back

Iron (Fe) and Oxygen (O).

Front

How do you determine the total number of atoms in a chemical formula?

Back

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Back

There are 4 Oxygen atoms and 1 Magnesium atom, so there are 3 more Oxygen atoms.

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Back

There are 2 (H) + 2 (O) = 4 total atoms.

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There are 10 Magnesium atoms.

Front

What does the subscript in a chemical formula indicate?

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Front

What is the significance of coefficients in a chemical formula?

Back

Front

How do you calculate the number of different types of atoms in a compound?

Back

Count the unique elements and their respective subscripts in the chemical formula.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.