Counting Atoms

Front

How many Oxygen atoms are in H₂O?

Back

1

Front

How many Magnesium atoms are in 10MgCl₂?

Back

10

Front

How many Hydrogen atoms are in 4H₂O?

Back

8

Front

How many Hydrogen atoms are in 3(NH₄)₂CrO₄?

Back

24

Front

Coefficients in chemical formulas are found at the beginning of a formula and multiply what?

Back

EVERYTHING!

Front

What is the chemical formula for water?

Back

H₂O

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule.

Front

In the formula 2H₂O, how many total Hydrogen atoms are there?

Back

4

Front

What is the total number of atoms in the formula C₆H₁₂O₆?

Back

24 (6 Carbon + 12 Hydrogen + 6 Oxygen)

Front

What does a coefficient in a chemical equation represent?

Back

The number of molecules or moles of a substance.