NGSS.MS-PS1-1

Which is the correct formula for:
 three hydrogen (H)
one sulfur (S)
four oxygen (O)

• H₃SO₄
• HSO₄
• H₄S₃O
• H₂O

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NGSS.MS-PS1-1

DIFFERENT kinds of atoms chemically combined to form a substance are

• Mixture
• Element
• Compound
• Substance

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NGSS.MS-PS1-1

Contains two or more atoms combined

• Elements
• Compounds
• Mixtures

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NGSS.MS-PS1-1

What is the smallest unit of matter?

• atom
• element
• molecule
• compound

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NGSS.MS-PS1-1

What element is this?

• Helium
• Hydrogen
• Argon
• Silver

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NGSS.MS-PS1-1

What is the mass of an atom if it has 11 protons, 12 neutrons, and 11 electrons?

• 22
• 11
• 34
• 23

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NGSS.MS-PS1-1

If an atom has 3 electrons, how many protons does it have?

• 1

• 2

• 3

• 4

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NGSS.MS-PS1-1

How many Hydrogen (H) atoms are in NH₃O5

• 3
• 4
• 5
• 1

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NGSS.MS-PS1-1

what is this substance H₂0

• Water

• Salt

• Chlorine

• Ammonia

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NGSS.MS-PS1-1

Identify this Substance CO₂

• Carbon dioxide

• Salt

• Water

• baking soda

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NGSS.MS-PS1-1