For which pair/s of substances would ΔHsoln most likely be strongly endothermic? (circle all that apply)...
For which pair/s of substances would ΔHsoln most likely be
strongly endothermic? (circle all that apply)
CaBr2 & H2O
CCl4 & H2O
NH3 & H2O
HCl & H2O
Homework Answers
1) Results in the formation of calcium hydroxide and hydrogen bromide. Takes place at a temperature of about 180-200°C. Heat is absorbed endothermic.
2) Does not dissolve in water. C and Cl atoms does not form hydrogen bonds with H2O molecules. CCl4 molecules are symmetric.
3) This reaction takes place readily.Ammonia is a gas .It behaves and show the characters of a base and dissolves readily. Ammonium and hydroxide ions are formed actually this reaction is exothermic.
4)As it is a strong electrolyte it readily mixes in water.Also heat is released.HCl losses it's proton as H+ and combines with water to form hydronium ion. It completely ionises also resulting in the formation of Cl- ions. Exothermic reaction.
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For which pair/s of substances would ΔHsoln most likely be
strongly endothermic? (circle all that apply)...
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