Water can dissolve other substances. Which factor best contributes to this property of water?
2 answers:
Answer: -
Water can dissolve other substances. Which factor best contributes to this property of water?
d. Water particles are not fixed in place.
Explanation: -
When a substance like say common salt sodium chloride NaCl is dissolved in water, the water molecules surround the Na⁺ and Cl⁻ which result from dissolving of NaCl in water.
The water molecules by surrounding the Na⁺ and Cl⁻ help in dissolving NaCl.
Thus in order to surround them,the water molecules should not be fixed in their place and be free to move about.
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Answer:
Q = 3937.56 J
Explanation:
Heat transferred due to change in temperature is given by :
c is the specific heat of water, c=4.18 J/g-°C
We have, m = 15 g,
So,
Hence, 3937.56 J of heat is transferred.
Answer:The correct answer is option (C).
Explanation:
After the reaction between Zinc and copper(II) chloride, Zinc chloride and copper will be obtained as a product. This reaction occurs because zinc is more reactive than copper which displaces the copper from its aqueous solution.
The student will expect to find copper metal at bottom of the beaker with aqueous solution of zinc chloride.
Hence the correct answer is option (C).