Ions & Ionic Formula Writing: Drop, Swap, & Simplify & Reverse

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the charge of a cation?

Back

A cation is a positively charged ion, formed when an atom loses one or more electrons.

Front

What is the charge of an anion?

Back

An anion is a negatively charged ion, formed when an atom gains one or more electrons.

Front

What does the term 'ionic compound' refer to?

Back

An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding.

Front

How do you determine the formula of an ionic compound?

Back

To determine the formula, balance the total positive and negative charges of the ions involved.

Front

What is the significance of the 'drop, swap, and simplify' method in ionic formula writing?

Back

This method helps in writing the correct formula by dropping the charges, swapping them to become subscripts, and simplifying if necessary.

Front

What is the formula for ammonium bromide?

Back

(NH4)+ and Br- combine to form (NH4)Br.

Front

What is the formula for calcium oxide?

Back

The ionic formula for calcium and oxygen is CaO.

Front

Identify the incorrect name-formula pair: sodium sulfate and Na2SO3.

Back

The correct formula for sodium sulfate is Na2SO4, not Na2SO3.

Front

What is the formula for copper(II) hydroxide?

Back

The formula for copper(II) hydroxide is Cu(OH)2.