Calcium chloride contains only calcium and chloride. What is the formula for this compound?

calcium-chloride

#1

Calcium chloride contains only calcium and chloride. What is the formula for this compound?

(You will need the Periodic Table for this question to determine the groups of these elements and, thus, determine their ionization. You might also choose to access the video for the Periodic Table of the Elements in the Introduction to this question.)

Express your answer as a chemical formula.

Answer:

Ca = 2 valency
Cl = 1 valency.

according to crisscross principle

CaCl2 will be the compound

Calcium chloride = CaCl2