Counting Atoms in Chemical Formulas

Front

How many atoms of Hydrogen are in H₂O?

Back

2

Front

How many different elements are present in H₂COCH₂?

Back

3

Front

Calculate the number of Oxygen atoms in Al(OH)₃

Back

3

Front

What are the numbers found on the lower right-hand side of an element symbol?

Back

Subscript

Front

Coefficients in chemical formulas...

Back

Multiply EVERYTHING!

Front

4CF₂Cl₂

Back

C = 4, F = 8, Cl = 8

Front

C₃H₅(NO₃)₃

Back

C = 3, H = 5, N = 3, O = 9

Front

H₂SO₄

Back

H = 2, S = 1, O = 4

Front

How many different elements are present in this molecule? 3 NH₄C₂H₃O₂

Back

4

Front

A ______ is a number written in front of a chemical formula.

Back

Coefficient