Counting Atoms

Front

What is the total number of atoms in the compound H₂SO₄?

Back

7

Front

How many oxygen atoms are present in the compound Fe(NO₃)₃?

Back

9

Front

How many hydrogen atoms are in the compound C₆H₁₂O₆?

Back

2

Front

What is the number of carbon atoms in C₆H₁₂O₆?

Back

6

Front

If an element symbol has no subscript, how many atoms of that element are present?

Back

Only 1

Front

What does a subscript in a chemical formula indicate?

Back

The number of atoms of the element in the compound.

Front

In the compound H₂O, how many total atoms are there?

Back

3 (2 Hydrogen + 1 Oxygen)

Front

What is the significance of the coefficients in a chemical formula?

Back

They indicate the number of molecules or moles of the compound.

Front

How do you determine the total number of atoms in a compound?

Back

Add the number of atoms of each element, considering their subscripts.

Front

What is the formula for calculating the total number of atoms in a compound?

Back

Total atoms = sum of (number of atoms of each element x subscript) for all elements.