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How do you determine how many atoms of each type are there in:
2Ca(OH)2?
And in 3Ba(CLO3)2?

2007-01-25 12:53:51 · 3 answers · asked by Rosy 2 in Science & Mathematics Chemistry

3 answers

There is one Ca in each molecule of Ca(OH)2.
There are two OH's in each molecule of Ca(OH)2.
Each OH has one O and one H.

There are two molecules of Ca(OH)2 so there are two Ca atoms, 4 O atoms, and 4 H atoms.

Follow this same method to find out the Ba(ClO3)2 molecule.

2007-01-25 13:05:22 · answer #1 · answered by Mark_the_science_guy 1 · 0 0

It is like math (I know!) The 2 is a coefficient and affects everything in front of it. The other 2 is a subscript and affects only what is before it.

In 2Ca(OH)2 there are 2 Calcium's, and 4 hydroxides (2 from the subscript times 2 from the coefficient.

In 3Ba(ClO3)2 there are 3 barium from the coefficient 3, and 6 Chorates from the subscript 2 times the coefficient 3.

Get an "A".

2007-01-25 21:10:41 · answer #2 · answered by teachr 5 · 0 0

2Ca(OH)2: Ca:?, O:2, H:2

3Ba(CLO3)2: Ba:?, Cl:2, O:6

2007-01-25 21:02:46 · answer #3 · answered by kmonk_08 2 · 0 0

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