Understanding Ionic Compounds

What is the primary characteristic of ionic bonding?

• Presence of free electrons

• Sharing of electrons between atoms

• Transfer of electrons from a metal to a non-metal

• Formation of covalent bonds

What type of structure do ionic compounds form?

• Two-dimensional structures

• Amorphous structures

• Linear structures

• Regular lattice structures

Why do ionic compounds have high melting and boiling points?

• Due to weak ionic bonds

• Because of the presence of free electrons

• Because of strong ionic bonds

• Due to their amorphous nature

When can ionic compounds conduct electricity?

• In gaseous form

• At room temperature

• When melted or dissolved in water

• In solid form

What is the formula for magnesium chloride?

• MgCl

• MgCl2

• Mg2Cl

• Mg2Cl3

What is the charge of a sulphate ion?

• 1 plus

• 3 minus

• 2 minus

• 1 minus

How many hydroxide ions are needed to balance one calcium ion in calcium hydroxide?

• 1

• 2

• 4

• 3

What is the formula for aluminium sulphate?

• Al(SO4)2

• Al2(SO4)3

• AlSO4

• Al3(SO4)2

Which ion has a 1 plus charge?

• Carbonate ion

• Sulphate ion

• Nitrate ion

• Ammonium ion

What is the formula for the nitrate ion?

• CO3 2 minus

• NH4 plus

• NO3 minus

• NO2 minus