Science, asked by fatimagohar100, 2 months ago

give me reasoning questions for chapter solution and suspension



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Answered by BTSARMYvminkook
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Answered by rithanyaa4
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1. Solutions and Suspensions Volume A Chapter 7

2. Lesson Objectives By the end of the lessons students sbat •distinguish among solute solvent, solution •deduce the nature of solutions and suspensions by simple laboratory tests •state the factors affecting solubility •state the factors affecting rate of dissolving •distinguish between a solution and a suspension

3. Quick Recap • Matter can be classified as elements, compounds and mixtures. • Element – An element is a substance that cannot be broken down into simpler substances. – Examples: carbon, gold, iron, oxygen

4. Quick Recap • Compound – A compound is a substance made up of 2 or more elements chemically combined together. – A compound is a substance that can be broken down into simpler substances by chemical methods. – Examples: water, carbon dioxide, ethanol

5. Quick Recap • Mixture – A mixture is a substance made up of 2 or more elements and/or compounds not chemically combined together. – A mixture is a substance that can be broken down into simpler substances by physical methods – Examples: air, seawater, crude oil, steel

6. Quick Recap A mixture can further be classified as a solution. or a suspension Matter Pure substances Elements Compounds Mixtures Solutions Suspensions

7. Solutions • When salt is added into water, salt dissolves in water. – Salt is known as the solute (substance that dissolves in the solvent). – Water is known as the solvent (substance that dissolves the solute). – The final mixture is known as the solution.

8. Solutions salt (solute) water (solvent) salt-water mixture (solution)

9. Wake Up Call 1 substance 1 solute or substance solute or solvent? 2 example solvent? a carbon dioxide water aerated drinks b water salt saline solution c alcohol iodine tincture of iodine solution b dishwashing detergent oil washing dishes

10. Suspensions • When a solid does not dissolve in a liquid, a suspension is formed. • A suspension is a mixture in which insoluble particles are suspended in a liquid or a gas.

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