interpreting a chemical formula Flashcards by Rafal Tayawi | Brainscape

Q

what does a chemical formula tell us?

A

the elements in a molecule and the number of atoms in each element

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Q

what is the chemical formula for MgS

A

1 magnesium atom

1 sulfur atom

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Q

interpret the chemical formula of Na2SO4

A

2 sodium atoms
1 Sulfur atom
4 oxygen atoms

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Q

interpret the chemical formula for

Ca(OH)2

A

1 calcium atom
2 oxygen atoms
2 hydrogen atoms

(the 2 after the brackets means it multiplies everything inside the brackets)

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Q

interpret the chemical formula for

Al(OH)3

A

1 aluminium atom
3 oxygen atoms
3 hydrogen atoms

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Q

interpret the chemical formula for

ZnCO3

A

1 zinc atom
1 carbon atom
3 oxygen atoms

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