Magnesium Oxalate and Oxalate Ion Concepts

The video tutorial explains how to write the formula for magnesium oxalate. It begins by identifying magnesium on the periodic table and discussing the oxalate ion, a polyatomic ion with a 2- charge. The tutorial then covers how to balance the charges between magnesium (2+) and oxalate (2-) to achieve a net charge of zero, resulting in the formula MgC2O4. The video concludes with a summary of the process.

What is the element symbol for magnesium?

• Mn

• Ma

• Mg

• Mo

Which of the following is true about oxalate?

• It is a single element.

• It is a polyatomic ion.

• It is found on the periodic table.

• It is a metal.

What is the chemical formula for the oxalate ion?

• CO3

• C2O4

• C3O2

• C2H4

What is the ionic charge of the oxalate ion?

• 1+

• 2-

• 1-

• 2+

Why is it necessary to balance the charges in magnesium oxalate?

• To make it a covalent compound.

• To ensure a net charge of zero.

• To increase its reactivity.

• To change its state of matter.

What is the final formula for magnesium oxalate?

• MgO

• MgCO3

• MgC2O4

• Mg2O4