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

8.5 How much salt is in the sea? — Visual & Photo Quiz

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  • Questions count: 1
  • Passing grade: B+
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1.
Look at the evaporating basin placed over a boiling water bath (steam bath) to gently evaporate seawater to dryness. What residue remains in the dish after all water has evaporated?
Dr Dabour Hub Academy - figure 1
White crystalline sea salts (primarily sodium chloride and magnesium salts)
Pure liquid chlorine
Nothing, because all minerals evaporate into air with steam
Pure elemental sodium metal
Part of Chapter 8: Pure Substances and Solutions — see every lesson and quiz in this unit.
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