Strontium Hydroxide and Ionic Charges

The video tutorial explains how to write the formula for strontium hydroxide. It begins by identifying strontium on the periodic table and explaining hydroxide as a polyatomic ion. The tutorial then discusses the importance of balancing charges to achieve a net charge of zero, given that strontium has a 2+ charge and hydroxide has a 1- charge. The formula for strontium hydroxide is derived as Sr(OH)2. The video concludes by highlighting the properties of strontium hydroxide, noting it as a strong base and a strong electrolyte.

What is the symbol for strontium on the periodic table?

• Sn

• Sm

• Sr

• St

Which of the following is a polyatomic ion that needs to be memorized?

• Nitrate

• Hydroxide

• Sulfate

• Chloride

Why is it important to consider the charge when forming strontium hydroxide?

• To balance the equation

• To ensure it is a solid

• To achieve a net charge of zero

• To make it soluble in water

What is the ionic charge of strontium in strontium hydroxide?

• 1-

• 2+

• 2-

• 1+

How many hydroxide ions are needed to balance the charge of one strontium ion?

• Four

• Three

• Two

• One

What is the chemical formula for strontium hydroxide?

• SrOH

• SrO2H

• Sr(OH)2

• Sr2OH

What type of base is strontium hydroxide considered to be?

• Acidic

• Strong base

• Neutral

• Weak base

In net ionic equations, how is strontium hydroxide treated?

• As a weak electrolyte

• As a non-electrolyte

• As an acid

• As a strong electrolyte