Strontium and Carbonate Compounds

The video tutorial explains how to write the chemical formula for strontium carbonate. It begins by identifying the element symbols for strontium and carbonate. The carbonate ion, CO3 2-, is introduced, and its charge is explained. The tutorial discusses the ionic nature of the compound, emphasizing the need to balance charges. Strontium, being in group two, has a 2+ charge, which balances with the 2- charge of the carbonate ion, resulting in a net charge of zero. The final formula for strontium carbonate is presented as SrCO3.

What is the chemical symbol for strontium?

• Sm

• Sn

• St

• Sr

Which of the following is the correct representation of the carbonate ion?

• C2O3 2-

• CO2 3-

• CO3 2-

• CO3 3-

What type of compound is formed between strontium and carbonate?

• Metallic

• Molecular

• Ionic

• Covalent

What is the charge on a strontium ion?

• 2-

• 1-

• 2+

• 1+

How do the charges of strontium and carbonate ions combine to form a neutral compound?

• 2+ and 1-

• 1+ and 1-

• 2+ and 2-

• 3+ and 3-

What is the chemical formula for strontium carbonate?

• Sr3CO

• Sr(CO3)2

• Sr2CO3

• SrCO3