Type of matter that's a pure substance and represented by a chemical symbol

Which is the best description of an element?

Salt (NaCl) is not found on the Periodic Table of Elements because salt is a(n)

Which of the following is the correct way to write an element Symbol?

A substance that contains two or more different elements bonded together is a

Why is nitrogen an element but ammonia (NH4) classified as a compound?

Which of these is the correct way to show the symbol of an element?

The chemical formula for carbon dioxide is CO2. Carbon dioxide can be classified as a compound because it

A pure substance that cannot be separated into simpler substances

A substance made of two or more elements that can be chemically separated

He

H2O

Xe

NH4

O

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