Review on writing chemical formulas

Front

What is the chemical formula for calcium phosphate?

Back

Ca₃(PO₄)₂

Front

What is the formula for zinc (I) fluoride?

Back

ZnF₂

Front

How are ionic compounds written in terms of ion order?

Back

Cation (+ ion) is written first, followed by anion (- ion).

Front

What are the ionic charges for Calcium and Chlorine?

Back

Calcium (Ca) has a charge of +2, and Chlorine (Cl) has a charge of -1.

Front

What is the formula for copper (II) hydroxide?

Back

Cu(OH)₂

Front

What is the general rule for writing the formula of ionic compounds?

Back

The total positive charge must balance the total negative charge.

Front

What is the charge of a cation?

Back

A cation has a positive charge.

Front

What is the charge of an anion?

Back

An anion has a negative charge.

Front

How do you determine the formula of a compound formed from calcium and chlorine?

Back

Calcium has a +2 charge and chlorine has a -1 charge, so the formula is CaCl₂.

Front

What is the significance of parentheses in chemical formulas?

Back

Parentheses are used to indicate that the enclosed group of atoms is a polyatomic ion and to show how many of that ion are present.