Chemical Bonding

This is a structure that consists of the chemical symbol of an element surrounded by a number of dots.

• BEDS

• LEDS

• MEDS

• REDS

This is a cation that is one of the component for bones and teeth.

• Ca2+

• Mg2+

• C4-

• O2-

This is a charged atom formed when it loses electrons

• Anion

• Cation

• Superion

• Zwitterion

This is a charged atom formed when it gains electrons

• Anion

• Cation

• Superion

• Zwitterion

This is a force that holds atoms together in a metallic substance.

• Ionic

• Metallic

• Covalent

• Polar Covalent

This is the chemical formula for Calcium Carbide.

• CaC

• Ca₂C

• CaC₂

• Ca₄C₂

This is the chemical formula for Silicon Dioxide.

• SiO₂

• Si₂O₂

• Si₂O₃

• Si₃O₄

People living in countries with snow are having a hard time removing a pile of snow in the streets. One neighbor suggested that they should use CaCl₂ to melt the snow. What is the charge of Chlorine?

• +1

• +2

• -1

• -2

Mark’s pet cat has been experiencing epilepsy for the past few days, so he decided to go to the veterinarian for immediate cure. The veterinarian used KBr for treatment of epilepsy of his pets. After a few days, his pet is getting well and now active. What is the name of the compound and the anion present?

• The name of the compound is Calcium Bromide and it contains the bromine ion.

• The name of the compound is Calcium Bromide and it contains the bromide ion.

• The name of the compound is Potassium Bromide and it contains the bromine ion.

• The name of the compound is Potassium Bromide and it contains the bromide ion.

Whenever Mira wants to clean the drain in her bathroom, she uses a cleaner that contains NaOH because she saw that this is very effective in cleaning drains. What are the charges of the ions present in the compound?

• The charge of Na is +1 and the charge of OH is -1.

• The charge of Na is +1 and the charge of OH is -2.

• The charge of Na is +2 and the charge of OH is -1.

• The charge of Na is +2 and the charge of OH is -2.