Q1-SOLUTIONS grade 7 science chapter5.pptx

chapter 5 q1 solutinos

1. SOLUTION

2. Read the story “Magic in the Lab” and answer the provided guide questions.

3. Team Magic Mixers, consisting of Emma and Alex, decided to experiment with powders and liquids to create a sparkling potion. Team Liquid Wizards, led by Ryan, combined colorful liquids to concoct a mesmerizing solution. As they began their experiments, the classroom buzzed with excitement. Enter Team Gas Gurus, the third team led by the clever and mischievous twins, Lily and Leo. While others were engrossed in their potions and mixtures, Lily and Leo had a plan involving magical gases.

4. They gathered a selection of enchanted gases and set out to create a bubbly elixir that would dazzle everyone. The teams encountered challenges along the way. Emma and Alex discovered that not all powders dissolved easily, while Ryan’s team struggled to find the right proportions for their liquid mixture. Lily and Leo faced the tricky nature of gases but with their ingenuity, they managed to capture the magic in their elixir.

5. After hours of brewing and stirring, the teams proudly presented their magical solutions to Professor Alchemistus . Team Magic Mixers unveiled a shimmering potion that changed colors with each swirl. Team Liquid Wizards showcased a vibrant mixture that seemed to dance in the flask, and Team Gas Gurus presented a fizzing elixir that released captivating bubbles. Professor Alchemistus was delighted. “Now, my young alchemists, you have successfully explored three types of solutions: solid in liquid, liquid in liquid, and gas in liquid. Each solution is a magical blend of different substances.”

6. As the students marveled at their creations, Professor Alchemistus revealed that understanding solutions was like unlocking the secrets of magical potions in Chemlandia . The students left the Potion Laboratory that day, not only with a deeper knowledge of solutions but also with a sense of wonder about the magical world of chemistry. And so, in the land of Chemlandia , the students continued their journey of discovery, applying the lessons learned from their magical mix-up to unravel the mysteries of enchanted realm of chemistry.

7. What is Solution?

8. Solution is a homogeneous mixture of 2 or more substances in a single phase. Consist of solute and solvent

9. Solute Part of the solution that is being dissolved. Usually the lesser amount

10. Solvent Part of the solution that dissolves the solute. Usually the greater amount

11. Solutions are classified based on the states of the solute and solvent.

12. Liquid solution- are solutions where the solvent is a liquid. It is the most common type of solution.

13. 2. Solid solutions are solutions where the solvent is solid.

14. 3. Gaseous solutions are solutions where the solvent is a gas.

15. A solution is simply a homogeneous mixture of two or more pure substances. 1 It consists of a solute and a solvent. 2 The more abundant substance is the solvent. It is also defined as the dissolving medium. 3 The substance present in less amount is the solute. It is also defined as the substance being dissolved. 4 Keypoints

16. Solutions are classified based on the states of the solute and solvent. They are classified as liquid solutions, solid solutions, and gaseous solutions. 5

17. Nature of Solution

18. Soluble Insoluble Miscibility Immiscibility

19. SOLUBLE- solid substances that dissolve in the solvent . INSOLUBLE – solid substances that do not dissolve in the solvent.

20. MISCIBILITY- refers to the ability of one liquid substance to mix with another liquid substance. IMMISCIBILITY- two pairs of liquids cannot mix. water and oil: immiscible liquids water and alcohol: miscible liquids

21. Concentration of Solution

22. What is concentration of solution? The concentration of a solution is a measure of how much a particular substance is dissolved in a solution.

23. The concentration of solution can be expressed as either quantitative or qualitative

24. The concentration of solution can be expressed as either quantitative or quantitative

25. Qualitative A diluted solution contains a greater amount of solvent than the solute. A concentrated solution contains a greater amount of solute than the solvent.

26. Quantitative (1) percent by mass (2) percent by volume. Percent (%) means parts per hundred parts.

27. Percentage by mass Is the amount of solute in a given solution

28. To calculate for percentage by mass, where % mass is the percentage by mass; m solute is the mass of solute m solution is the mass of solution. How to solve percentage by Mass

29. To calculate for percentage by volume, % volume is the percentage by volume v solute is the volume of solute v solution is the volume of solution. Percentage by Volume