5
AssignmentMultiple Choice

Naming Ionic Compounds

Question 5 • AA-F26 Physical Science

What is the chemical name of K2O?

Answer
A
potassium oxygen
B
potassium oxide
C
oxygen potasside
D
oxygen potassium

Explanation

K is the symbol for potassium, and O forms the oxide ion in this ionic compound. Name the metal first, then the nonmetal with an -ide ending: potassium oxide.

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