Water, STd 8

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Across
  1. 5. Solutions in which more solute can be dissolved at a given temperature
  2. 7. substances which on exposure to atmosphere absorb moisture but do not change their original state.
  3. 8. phenomena in which hydrated crystal on exposure to atmosphere loose moisture to the atmosphere and changes into an amorphous state.
  4. 9. _______ can remove Bicarbonates of calcium and Magnesium from hard water.
  5. 10. is used to remove permanent hardness.
  6. 12. solutions which are heterogenous mixtures with particle size between 1nm-100nm which can pass through a filter paper and can be seen under an ultra microscope.
Down
  1. 1. presence of sulphates of Ca and Mg causes this kind of hardness.
  2. 2. FeCl3 crystals is an example of __________ substance, since it absorbs moisture from the atmosphere changes into a saturated solution.
  3. 3. solutions which are homogenous mixtures- clear and transparent in nature.
  4. 4. solutions which are heterogenous mixtures with particle size more than 100nm and cannot pass through a filter paper
  5. 6. ______ crystals contain definite number of water molecules.
  6. 11. _____water does not lather readily