EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Explain why a magnesium ion has a charge of 2+.

Important Questions on Atoms Combining

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 4 - Atoms Combining>Q>Q 4
Explain why the ions in magnesium oxide stay together.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 4 - Atoms Combining>Q>Q 4
Explain why magnesium chloride have no overall charge.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 4 - Atoms Combining>Q>Q 4
Explain why the formula of magnesium chloride is MgCl2.
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 4 - Atoms Combining>Q>Q 3
Write down the symbols for the ions in lithium sulphide.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 4 - Atoms Combining>Q>Q 4

Workout the formula for the following compounds:

  • Potassium chloride
  • Calcium sulphide
  • Lithium sulphide
  • Magnesium fluoride
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 4 - Atoms Combining>Q>Q 5
Workout the formula of copper II chloride.
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 4 - Atoms Combining>Q>Q 5
Workout the formula of iron III oxide.
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 4 - Atoms Combining>Q>Q 7
Workout the formula for sodium sulphate.