True.
Jenny: I was thinking the same thing about empirical formulas when I read the question, but the way the question is phrased, the answer is true. because it "can" tell the number of atoms in a molecule or a compound.
2007-12-16 07:41:14
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answer #1
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answered by mcalhoun333 4
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False: a formula can tell the number if it is a *molecular* compound (only non-metals), but not if the compound is ionic. Ionic compounds show the empirical formula (lowest whole number ratio.)
2007-12-16 15:42:24
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answer #2
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answered by Jenny 2
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yes eg, O2 is 2 atoms so yeah BUT empirical formula doesn't it tells you the lowest ratio of atoms in a compound, molecular formula tells you the exact amount of atoms
2007-12-16 15:40:54
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answer #3
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answered by LoVE LiFE 3
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True.
H2O
There are two molecules of Hydrogen.
Each molecule contains 6.022 x 10^23 atoms
2007-12-16 15:42:04
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answer #4
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answered by Anonymous
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True!!!!
e.g.
CaCO3 the formula for calcium carbonate (limestone)
This formula tells us that it contains:-
1 atom of calcium
1 atom of carbon
3 atoms of oxygen.
H2SO4 the formula for sulphuric acid
This formula tells us that it contains:-
2 atoms of hydrogen
1 atom of sulphur
4 atoms of oxygen.
2007-12-16 15:42:51
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answer #5
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answered by lenpol7 7
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