Counting Atoms

Front

What is the chemical formula for Sodium Chloride?

Back

NaCl

Front

How many atoms of Sodium are in 6(NaCl)?

Back

6

Front

How many atoms of Hydrogen are in 4(H₂O)?

Back

8

Front

What is the number of Nitrogen atoms in (NH₄)₂CrO₄?

Back

2

Front

How many Oxygen atoms are in Al₂3(SO₄)?

Back

12

Front

How many Oxygen atoms are in H₂O?

Back

1

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule.

Front

What is the total number of atoms in 2H₂O?

Back

6 (2 Hydrogen + 2 Oxygen)

Front

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

Back

Add the number of atoms of each element based on their subscripts.

Front

What is the significance of coefficients in a chemical formula?

Back

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