NGSS.MS-PS1-1

How many nitrogen atoms are in the chemical formula for 4(NH₄)₂SO₄?

• 1
• 4
• 2
• 8

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NGSS.MS-PS1-1

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

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NGSS.MS-PS1-1

How many elements are found in the following molecule? Mg(ClO₃)₂

• 1
• 4
• 3
• 5

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NGSS.MS-PS1-1

How many Mn atoms are found in the following compound?
3Cr(MnO₄)₆

• 3
• 4
• 6
• 18

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NGSS.MS-PS1-1

What is the term for combining 2 or more DIFFERENT atoms together?

• atoms
• elements
• molecules
• compounds

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NGSS.MS-PS1-1

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

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NGSS.MS-PS1-1

How many Hydrogen atoms are in 4H₂O?

• 6

• 8

• 2

• 4

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NGSS.MS-PS1-1

A scientist mixed two samples together: a colorless liquid that melts at 12°C and a yellow solid that melts at 390°C. She analyzed the results and found two ending substances. One of the ending substances was a gray solid. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples the scientist mixed together?

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NGSS.MS-PS1-1

What is CO₂?

• Carbon Monoxide

• Carbon Dioxide

• Carbon Trioxide

• Oxygen

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NGSS.MS-PS1-1

H₂O₂← ?

These numbers (in green) tell the number of atoms present.

• coefficient

• molecule

• subscript

• atom

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NGSS.MS-PS1-1