Why does hard water taste better than distilled water?
1 answer:
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Actually Welcome to the Concept of the Ionic bonds.
Since Sodium (Na) is a cation and Chlorine (Cl) is a Anion, they both form a Ionic bond called as NaCl (common salt)
So answer is, Na and Cl
Answer:
mass (m) of the snow that the backpacker collected= 0.855 kg
Explanation:
Given that:
Q = 643 kJ = 643000 J
ΔHfusion = 6.02 kJ/mol = 6020 J/mol
number of mole of water H2O =
c = 4.18 J/g⋅K
ΔT = 100 K
Since there is a phase change from solid to liquid; then :
ΔH =
However without the given mass; we substitute for the number of moles; so:
Q =
m = 855 g
m = 0.855 kg
mass (m) of the snow that the backpacker collected= 0.855 kg