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Science•SHS Sciences

Chemistry: reactions and bonding

Senior High 5 questions
AI-drafted from platform data — specialist review scheduledBy DigiTransact Mastermind editorial teamLast updated
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What chemistry: reactions and bonding means

You learn how acids, bases, the mole and bonding work in simple chemical situations. This helps you understand laboratory tests, formulae and why substances behave differently in reactions.

What you will practise

  • Identify acids and bases from their reactions and test results
  • Use pH values to tell neutral, acidic and alkaline solutions apart
  • Work with the mole when counting particles and comparing masses
  • Recognise ionic and other common chemical bonds in compounds

Before you start

You should already be comfortable with simple chemical symbols, common elements and reading basic formulas. It also helps to know how to use a calculator for simple arithmetic.

Not confident yet? Work through Cell biology first.

Worked example

One question from this skill's own question bank, shown with its full working.

Question

The pH of a neutral solution is:

  • 0
  • 7
  • 10
  • 14
Answer: 7

Working: A neutral solution such as pure water has a pH of 7.

Common mistakes to avoid

  • Mixing up acids and bases; check litmus changes before answering.
  • Forgetting that neutral solutions have a pH of 7, not 0.
  • Thinking sodium chloride has covalent bonding; sodium and chlorine form ions.
  • Confusing mole calculations with mass only; always link moles, mass and formula.

Curriculum and exam alignment

Ghana GES SHS syllabusWASSCE

This topic normally appears within SHS chemistry when learners study acids, bases, mole concepts and bonding before deeper reaction work. It supports revision for WASSCE by strengthening the ideas behind test questions, equations and simple chemical reasoning.

Curriculum notes are a general guide to where this work normally sits. Always check the syllabus your school or examination body is currently using.

Related skills

Other SHS Sciences skills in Science, at the same point in the course.

Other Science topics

Living Things Around UsUniversity ScienceBiologyChemistryPhysicsEarth & Space

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Exams that assess chemistry: reactions and bonding

Senior High work on this skill feeds directly into these exam papers. Each page lists the Science topics that appear on it.

WASSCEWASSCE practice questionsFree WASSCE practice across the subjects at this stage, with worked answers.GESGES practice questionsFree GES practice across the subjects at this stage, with worked answers.BECEBECE practice questionsListed as a related subject on the BECE practice page.

How this page was produced

This text was drafted with AI assistance from the questions and topics already stored on the platform. A subject-specialist review is scheduled but has not yet been recorded, so we do not claim it here.

Written by
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Practise chemistry: reactions and bonding

5 questions with a worked answer after every attempt, and a SmartScore that tracks how close you are to mastery.

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