Biology, 10.11.2020 08:00 luv4appleallday
To see how many atoms are in the chemical formula or element symbol, look at the subscript.
Example: Hz
There are two Hydrogens.
H2O
There is one Oxygen. No subscript means one.
Directions: Find the number of atoms in each chemical formula.
1. NaCl (sodium chloride or table salt)
Na-
CI-
2. CO2 (carbon dioxide)
C-
0-
3. O2 (oxygen)
0-
4. CoH1206 (glucose)
C-
H-
0-
To see how many atoms are in the chemical formula or element symbol, look at the subscript.
When there's a COEFFICIENT, multiply the coefficient by each subscript.
Example: 2H2O1
20102
Directions: Find the number of atoms in each chemical formula.
5. 2NaCl (sodium chloride or table salt)
Na
CH-
6.3C02 (carbon dioxide)
C.
0-
7.402 (oxygen)
0-
8. 2C6H12O6 (glucose)
c
H-
0-
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To see how many atoms are in the chemical formula or element symbol, look at the subscript.
Example...
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