Water is a _ made up of hydrogen and oxygen combined in the ratio by volume or ___ by mass.

compound, 3:2, 1:1 respectively

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element, 1:2, 3:1 respectively

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compound, 2:1, 1:8 respectively

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molecule, 1:1, 1:16 respectively

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Solution

The correct option is C compound, 2:1, 1:8 respectively
Water is a chemical compound made up of hydrogen and oxygen combined in the ratio $2 : 1$ by volume or $1 : 8$ by mass (2 g of hydrogen combines with 16 g of oxygen).

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Water is a _______ made up of hydrogen and oxygen combined in the ratio ______ by volume or _______ by mass.

The correct option is C compound, 2:1, 1:8 respectivelyWater is a chemical compound made up of hydrogen and oxygen combined in the ratio 2:1 by volume or 1:8 by mass (2 g of hydrogen combines with 16 g of oxygen).

Water is a _ made up of hydrogen and oxygen combined in the ratio by volume or ___ by mass.

The correct option is C compound, 2:1, 1:8 respectively
Water is a chemical compound made up of hydrogen and oxygen combined in the ratio $2 : 1$ by volume or $1 : 8$ by mass (2 g of hydrogen combines with 16 g of oxygen).