| Introduction to Matter | Chemical Reactions | Physical and Chemical Properties of Matter | Chemical changes and Reactions | Potpourri |
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What is an atom
The smallest unit of matter is called_______?
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What is an element?
A pure substance composed of the same atoms.
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Element with atomic number 12
What is the atomic number for Mg?
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What is a compound?
NaCl (salt) containing two different elements that are chemically combined is called?
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What is the chemical formula for carbon dioxide?
CO2
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