Naming Molecular Compounds | Fast & Easy Way | Practice Examples | Chemistry |

Science 9 - Unit B: Matter & Chemical Changes

3 simple steps to write names for molecular compounds with practice examples.

Step 1. Write the name of the first element 
Step 2. Write the name of the second element and change the ending to “ide”
Step 3. Include the prefix to indicate the number of each type of atom

Prefixes: 1 = mono 2 = di 3 = tri 4 = tetra 5 = penta 6 = hexa 7 = hepta 8 = octa 9 = nona 10 = deca

Answers for the practice questions:
Phosphorus trichloride
Nitrogen dioxide
Dinitrogen hexafluoride
Tetrasulfur dinitride

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