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pashok25 [27]
3 years ago
8

The atmosphere of the gas giants is usually made up mostly of hydrogen and ______.

Chemistry
2 answers:
Andrej [43]3 years ago
7 0

Answer: helium

Explanation:

valkas [14]3 years ago
6 0

Answer: Helium

Explanation:

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Assuming equal concentrations and complete dissociation, rank these aqueous solutions by their freezing points. nh4cl cobr3 k2so
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Justification:

1) The depression of the freezing point of a solution is a colligative property, which means that it depends on the number of particles of solute dissolved.

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ΔTf = i * Kf * m

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a) NH4 Cl (s) --> NH4(+)(aq) + Cl(-) (aq) => 1 mol --> 2 moles

b) Co Br3 (s) --> Co(3+) (aq) + 3Br(-)(aq) => 1 mol --> 4 moles

c) K2SO4 (s) --> 2K(+) (aq) + SO4 (2-) (aq) => 1 mol --> 3 moles

5) So, the rank of solutions by their freezing points is:

CoBr3 < K2SO4 < NH4 Cl
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