Benchmark Review - Category 1 - Matter & Energy

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What is matter?

Back

Matter is anything that has mass and takes up space.

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What are the three states of matter?

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The three states of matter are solid, liquid, and gas.

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What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

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What is the periodic table?

Back

The periodic table is a tabular arrangement of elements organized by their atomic number, electron configuration, and recurring chemical properties.

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What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

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What is a compound?

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A compound is a substance formed when two or more elements are chemically bonded together.

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What is the law of conservation of mass?

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The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

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What is a molecule?

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A molecule is the smallest unit of a chemical compound that retains its chemical properties.

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What is an atom?

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An atom is the basic unit of a chemical element, consisting of protons, neutrons, and electrons.

Front

What is a chemical formula?

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A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound.