Let’s go through each question one by one.
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Q.7 – True or False
1.
“When solutions form, the mass of the solute is lost as it disappears into solution.”
→ This is
False. The solute doesn’t disappear — it just mixes in so well you can’t see it anymore. But its mass is still there! If you weigh the whole solution, it equals the mass of the solvent plus the mass of the solute. Nothing is lost.
2.
“Solutions are always in liquid form.”
→ This is
False. Solutions can be gases (like air), liquids (like saltwater), or even solids (like alloys such as brass). So not always liquid!
3.
“There can be more than one solute in the same solution.”
→ This is
True. For example, you can dissolve both sugar and salt in water at the same time. Both are solutes in that one solution.
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Q.8 – What is the substance called that is being dissolved in a solution?
We have four choices:
- a) Solvent → That’s what does the dissolving (like water).
- b) Solute → That’s what gets dissolved (like salt or sugar).
- c) Homogeneous → That describes the mixture type, not the substance.
- d) Heterogeneous → Also describes mixture type, and means uneven mixing.
So the correct answer is
b) Solute.
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Q.9 – Label the solute and solvent in Salt and Water solution.
In the picture:
- The spoon is pouring something granular (salt) into a glass with blue liquid (water).
- Salt is being dissolved → so salt =
solute
- Water is doing the dissolving → so water =
solvent
So:
- Top box (pointing to salt falling from spoon) →
Solute
- Bottom box (pointing to water in glass) →
Solvent
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Final Answer:
Q.7:
1. F
2. F
3. T
Q.8: b) Solute
Q.9:
Top box: Solute
Bottom box: Solvent
Parent Tip: Review the logic above to help your child master the concept of solutions and mixtures worksheet.
