Elements & Compounds

While elements and compounds are related, they are different. Unlike elements, compounds -

• consist of only one type of atom.

• are the smallest form of a particle.

• exist only as pure substances.

• are made of at least two types of matter.

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Science 6.5A

Match the following

• Heterogenous Mixture

• 
• Atom

• 
• Compound

• 
• Homogenous Mixture

• 
• Element

• 

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“Na” is called the element’s

• formula.

• name.

• symbol.

• compound.

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

• Molecule
• Compound
• Atom
• Ion

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

• solid

• liquid

• gas

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

• melting

• freezing

• evaporation

• condensation

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Which of the following represents an element?

• H₂O

• NaCl

• H₂

• CaCO₃

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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