Chemical Formulas

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What is a chemical formula?

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A chemical formula is a way of expressing the composition of a chemical compound using symbols for the elements and numbers to indicate the quantity of each element.

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What does the subscript in a chemical formula represent?

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The subscript in a chemical formula indicates the number of atoms of the element present in one molecule of the compound.

Front

How many different types of elements are in glucose (C6H12O6)?

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There are 3 different types of elements: Carbon (C), Hydrogen (H), and Oxygen (O).

Front

How many carbon atoms are in glucose (C6H12O6)?

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There are 6 carbon atoms in glucose.

Front

What is a compound?

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A compound is a substance made up of two or more different elements that are chemically combined.

Front

What is the chemical formula for water?

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The chemical formula for water is H2O, which means it contains 2 hydrogen atoms and 1 oxygen atom.

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How many oxygen atoms are in the compound sulfuric acid (H2SO4)?

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There are 4 oxygen atoms in sulfuric acid.

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What is the difference between an element and a compound?

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An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements that are chemically combined.

Front

What is the chemical formula for sodium chloride (table salt)?

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The chemical formula for sodium chloride is NaCl.

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How many magnesium atoms are in 10MgCl2?

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There are 10 magnesium atoms in 10MgCl2.