Counting Atoms

Front

What is the chemical formula for glucose?

Back

C6H12O6

Front

How many different elements are present in the compound C6H12O6?

Back

3 (Carbon, Hydrogen, Oxygen)

Front

What does a subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule.

Front

How many hydrogen atoms are in one molecule of water (H2O)?

Back

2

Front

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

Back

Only 1 atom.

Front

In the compound H2C3O4N5, how many total nitrogen atoms are there?

Back

5 nitrogen atoms.

Front

What is the total number of hydrogen atoms in 4H2O?

Back

8 hydrogen atoms.

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 significance of the coefficients in a chemical formula?

Back

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

Front

How many total atoms are in the compound C6H12O6?

Back

24 total atoms (6 C + 12 H + 6 O).