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Moles & Rates (GCSE)

GCSE-style stretch. Expect multi-step reasoning and exam vocabulary.

Combined Science · Hard

5

questions · ~4 min · 3 hints each (−5 pts)

Confidence tracking, 3-tier hints and instant feedback.

What you'll learn

Each question helps you build key knowledge and skills.

  • 11 mole = 6.02 × 10²³ particles.
  • 2Mass = moles × relative atomic mass.
  • 3Rate of reaction is affected by temperature, concentration, surface area, catalysts.
  • 4Catalysts lower activation energy without being used up.

Question mix

A mix of question types to build your skills.

  • Fill the gap×2
  • Multiple choice×1
  • True / False×1
  • Short answer×1

Different question types help you think in different ways.

How it works

A simple 3-step process

  1. 1

    Rate your confidence

    Tell us how sure you feel before answering. It helps us understand your starting point.

  2. 2

    Use hints if stuck

    Get up to 3 helpful hints per question. Each hint costs 5 Treasure Points.

  3. 3

    See what went wrong

    Get instant feedback with clear explanations, so you can learn and improve.

Ready when you are

This takes about 4 minutes.