Curriculum
Course: Alhussan Chemistry — Stage 8
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Curriculum

Alhussan Chemistry — Stage 8

Chapter 7: Inside Atoms

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Chapter 8: Pure Substances and Solutions

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Chapter 9: Chemical Reactions 2

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Quiz

9.7 Metals and water — Visual & Photo Quiz

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  • Questions count: 1
  • Passing grade: B+
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1.
Look at the photograph showing a small piece of sodium metal skimming rapidly across the surface of water in a trough, melting into a silvery ball and effervescing. What gas is being released?
Dr Dabour Hub Academy - figure 1
Hydrogen gas (H₂)
Oxygen gas (O₂)
Carbon dioxide (CO₂)
Chlorine gas (Cl₂)
Part of Chapter 9: Chemical Reactions 2 — see every lesson and quiz in this unit.
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