6. Grade 9

Homework Grade 9


제목Science Homework (due Tuesday June 17)2025-06-16 13:03
작성자 Level 8

Please review and study Chapter 9. The test is tomorrow (Tuesday June 17).

Essay/Short Answer Questions to study for:

  • Using sodium chloride as the solute, sketch the process by which sodium chloride is dissolved by water.
  • You are on a wilderness camping trip and have chlorine tablets that dissolve in water to make purified drinking water. How could you speed up the process of dissolving the chlorine tablet in your canteen in order to have quicker access to purified water?
  • Will adding salt to a pot of water cause it to boil faster? Why or why not?
  • What is dissociation of an ionic compound?
  • Explain the phrase "like dissolves like."
  • Give an example that shows how colligative properties are used for human prospering.

Vocabulary:

  • distillation
  • evaporation
  • filtration
  • magnetism
  • solvation 
  • saturated
  • unsaturated
  • increases
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