Calcium and Perchlorate Compounds

The video tutorial explains how to write the chemical formula for calcium perchlorate. It begins by identifying calcium as a metal and perchlorate as a polyatomic ion. The tutorial details the ionic charges of calcium and perchlorate, emphasizing the need to balance these charges to form the compound. The final formula, Ca(ClO4)2, is derived by ensuring the charges are balanced. The video concludes with a brief mention of naming the compound from its formula.

What is the chemical symbol for calcium?

• Ca

• Cl

• C

• Co

Which of the following is true about perchlorate?

• It is a metal with a positive charge.

• It is a polyatomic ion with a charge of 1-.

• It is a diatomic molecule.

• It is a single element found on the periodic table.

What is the charge of calcium when it forms an ion?

• 2-

• 1-

• 2+

• 1+

How many perchlorate ions are needed to balance the charge of one calcium ion?

• One

• Two

• Four

• Three

Which group on the periodic table does calcium belong to?

• Group 1

• Group 2

• Group 3

• Group 4

What is the correct formula for calcium perchlorate?

• CaClO4

• Ca(ClO4)2

• Ca2ClO4

• CaCl2O4

If given the formula Ca(ClO4)2, what is the name of the compound?

• Calcium Carbonate

• Calcium Chlorate

• Calcium Perchlorate

• Calcium Chloride