ex-formula"> X , Y and Z are the samples of water obtained from different sources. The types of salt dissolved in them are labelled in the picture. Now , Answer the following questions.
i. Identify the hardness of water that can be removed by boiling process.
ii. Which of them is soft water ?
iii. Write the chemical equation of the reaction that takes place when Z is treated with X , Y and Z.
~Random/Irrelevant answers will be reported!
i. Identify the hardness of water that can be removed by boiling process.
ii. Which of them is soft water ?
iii. Write the chemical equation of the reaction that takes place when Z is treated with X , Y and Z.
~Random/Irrelevant answers will be reported!
2 answers:
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Answer:
Here's what I get
Explanation:
A plant extract is a mixture because it contains different substances: acetone or ethanol, chlorophylls A and B, carotene and xanthophylls.
It is homogeneous because it is a solution. There is only one phase: the liquid phase. You cannot see the pigments as separate phases.
You can separate the pigments by paper, thin layer, or column chromatography.
Many schools use paper chromatography, because paper is cheap.
As the mixture of pigments follows the solvent up the paper, they separate into different coloured bands according to their attractive forces to the cellulose in the paper.
The chlorophylls are strongly attracted to the paper, so they don't travel very far.
The nonpolar carotene molecules have little attraction to the polar cellulose, so they are carried along by the solvent front.
