give with points 1. aim 2. apparatus and materials 3. procedure 4. observations 5. conclusion
please give the answer and experiment with diagram and give full answer I have to write it doesn't give foolish answer please and give full answer only who will give me correct answer I will follow then
Answers
Explanation:
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Answer:
Experiment I.
A physical change as salt is dissolved in water does not affect mass.
We have to do - Find the mass of the small cup filled with 20 ml of water and the container that holds the salt (all at the same time). Predict whether the mass will change after the salt is mixed into the water.
Add the salt to the water and mix the solution with a spoon. Be sure to not lose any of the salt or water during the mixing.
Find the mass of the cup, salt-water mixture, and the empty salt container.
Conclusion - Salt is dissolved in water and does not affect mass.
Experiment II.
Chemical reaction of soap and water
We have to do - Add soap to water.
Conclusion - When soap is added to water, the ionic-salt end of the molecule is attracted to water and dissolved in it. The non-polar hydrocarbon end of the soap molecule is repelled by water. A drop or two of soap in water forms a monolayer on the water surface as shown in the graphics on the left.
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