Allen Gator Quiz- Element and Compounds

The smallest particle of any particular type of matter is known by which of the following terms?

• Element

• Molecule

• Atom

• Compound

Which of the following best represents an element?

• He

• LiF

• H₂O

• NaCl

Which of the following most accurately models the relationship between compounds and elements?

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Which of these data tables correctly classifies the given substances?

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Based on the key, which of these models a compound?

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Which one of the following substances is an element?

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The chemical equation shown below represents a reaction that produces fuel for certain cars. Which substance represented in this equation is classified as an element?

• CO

• H₂O

• CO₂

• H₂

How many different elements are involved in the reaction shown below?

• 3

• 4

• 7

• 12

The oceans are primarily composed of which two elements?

• carbon and hydrogen

• calcium and silicon

• hydrogen and oxygen

• nitrogen and phosphorous

How many elements are in the compound Fe₂O₃

• 1

• 3

• 2

• 5