Understanding Calcium Chlorate and Ionic Compounds

The video tutorial explains how to write the chemical formula for calcium chlorate. It begins by identifying calcium on the periodic table and recognizing chlorate as a polyatomic ion. The tutorial describes the ionic nature of the compound, emphasizing the need for charge balance. The crisscross method is introduced to determine the correct subscripts for the formula. Finally, the video verifies the formula by checking the charges, ensuring the net charge is zero, and concludes with a clean presentation of the formula.

What is the chemical symbol for calcium?

• Ca

• C

• Cl

• K

Which of the following is a polyatomic ion?

• Ca

• Cl

• ClO3-

• O2

What type of compound is formed between metals and non-metals?

• Metallic

• Hydrogen

• Ionic

• Covalent

What is the ionic charge of calcium in calcium chlorate?

• 1-

• 2-

• 1+

• 2+

What method is used to balance the charges in calcium chlorate?

• Cross-multiplication

• Crisscross

• Substitution

• Elimination

Why do we use parentheses in the formula for calcium chlorate?

• To show the charge

• To denote a single ion

• To separate elements

• To indicate multiple ions

How many chlorate ions are present in calcium chlorate?

• Four

• One

• Three

• Two

What is the net charge of a neutral compound?

• Positive

• Negative

• Zero

• Variable

What is the final formula for calcium chlorate?

• CaO

• CaCl2

• Ca(ClO3)2

• CaCl

Who is the presenter of the video?

• Dr. D

• Dr. A

• Dr. B

• Dr. C