Elements, Compounds, Formula Mass and Percent Composition

A substance that contains only one type of atom is a(n)

• compound
• element
• heterogeneous mixture
• homogeneous mixture

Tags

NGSS.HS-PS1-1

Which of the following is a compound?

• Water

• Oxygen

• Chlorine

• Aluminum

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Science 6.5A

This table has two columns of different kinds of matter. Which of the following is the best label for the second column?

• Elements
• Compounds
• Mixtures
• Atoms

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Science 6.5A

The smallest particle of an element; made of electrons, protons, and neutrons

• Molecule
• Compound
• Atom
• Ion

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Science 6.5A

In which state of matter are the particles the moving the fastest?

• solid

• liquid

• gas

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Science 6.5A

What is the process that turns a liquid into a gas?

• melting

• freezing

• evaporation

• condensation

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Science 6.5A

Which of the following represents an element?

• H₂O

• NaCl

• H₂

• CaCO₃

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Science 6.5A

What is H₂SO₄

made up of?

• 2 hydrogen, 1 sulfur, 4 oxygen

• 2 hydrogen & 4 sodium

• 1 hydrogen, 2 sulfur, 4 oxygen

• 1 hydrogen & 6 sodium

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Science 6.5A

Provided is a list of five different substances. How many of these substances are elements?

• 2

• 3

• 4

• 5

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Science 6.5A

Which element is one of the most abundant on Earth?

• • 
    Carbon

     

• • Oxygen

• • Nitrogen

• • Phosphorus

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Science 6.5A