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In the chemical formula below, how many atoms of hydrogen are represented?

O6
O4
O2
O8
4Ca(OH)2

1 Answer

3 votes

Final answer:

The number of atoms of hydrogen represented in different chemical formulas


Step-by-step explanation:

In the chemical formula below, the number after each element represents the number of atoms of that element. In the given options:

  • O6: There are 6 atoms of oxygen.
  • O4: There are 4 atoms of oxygen.
  • O2: There are 2 atoms of oxygen.
  • O8: There are 8 atoms of oxygen.
  • 4Ca(OH)2: There are a total of 2 hydrogen atoms per hydroxide group (OH)2, and there are 4 hydroxide groups in the formula. Therefore, there are 4 x 2 = 8 atoms of hydrogen.

Thus, in the chemical formula O6, there are 6 atoms of oxygen; in O4, there are 4 atoms of oxygen; in O2, there are 2 atoms of oxygen; in O8, there are 8 atoms of oxygen; and in 4Ca(OH)2, there are 8 atoms of hydrogen.


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