Counting Atoms Quiz

• A. 1

• B. 3

• C. 4

• D. 7

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NGSS.MS-PS1-1

• A. 3

• B. 6

• C. 9

• D. 18

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• A. Multiply the subscript outside the parentheses by the subscript after hydrogen.

• B. Use the subscript after hydrogen to determine the total number of hydrogen atoms in the substance.

• C. Add the subscript outside the parentheses to the subscript after hydrogen.

• D. Substract the subscript outside the parentheses from the subscript after hydrogen.

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• A. Eight atoms of carbon, ten atoms of hydrogen, and two atoms of oxygen.

• B. Eight atoms of carbon, ten atoms of hydrogen, four atoms of nitrogen, and two atoms of oxygen.

• C. Eight atoms of carbon, ten atoms of hydrogen, two atoms of nitrogen, and four atoms of oxygen.

• D. Eight atoms of carbon, ten atoms of hydrogen, and six atoms of oxygen.

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• 
• 
• 
• 

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• A. 19

• B. 20

• C. 21

• D. None of the above

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• A. 1-Yellow, 1-Red, 1-Black, and 3-White

• B. 2-Yellow, 1-White, Red, 1-Black, and 3-Red

• C. 1-Yellow, 1-White, 1-Black, and 3-Red

• D. 1-Yellow, 1,-White, 3-Black, and 3-Red

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Subscripts describe the number of......

• A. Atoms

• B. Molecules

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Coefficients describe the number of.......

• Atoms

• Molecules

How many MOLECULES are in 4H₂O?

• 6

• 8

• 2

• 4

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NGSS.MS-PS1-1