Answer: lower freezing point and a higher boiling point than water
Explanation:
Addition of a non volatile solute leads to elevation in boiling point and depression in freezing point.
This increase in boiling point arises because particles of the non-volatile solute occupy the surface of solution due to which solvent particles can not escape out of the solution. Hence, high amount of heat is required for the solute particles to escape out of the solution. Therefore, an increase in boiling point will occur.
Also as vapor pressure of solution becomes less, the freezing point gets depressed as freezing point is the temperature at which vapor pressure of solid becomes equal to the vapor pressure of solution.
Thus at standard pressure when NaCl is added to water,the solution will have a lower freezing point and a higher boiling point than water
Enter your rounded answer with
3 decimal places.
Kb for water = 0.512 °C/m
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Answer:100.3
Explanation:
B. Hydrogen bonds inside each water molecule
C. Ionic bonds between water molecules
D. Nonpolar covalent bonds between water molecules
Answer:
Both polar covalent bonds inside each water molecule and hydrogen bonds inside each water molecule are liable for attraction between water molecules.
Explanation:
b. CO2
c. H2
d. H2O
Answer:
See explanation for details
Explanation:
ammonium sulfate and barium nitrate Answer
Ba2+(aq) + SO4^2-(aq) ----------> BaSO4(s)
lead(II) nitrate and sodium chloride Answer
Pb2+(aq) + 2Cl-(aq) -----------> PbCl2(s)
copper(II) chloride and sodium hydroxide Answer
Cu2+(aq) + 2OH-(aq) -------------> Cu(OH)2(s)
There can only be a net ionic reaction when a precipitate is formed as the two solutions are mixed together.
There are no net ionic equations for the given reactions as neither of them forms a precipitate.The correct option is no reaction.
The reactions are as follows:
Ionic equation is defined as a chemical equation which represents electrolytes in aqueous solutions and are expressed as dissociated ions. Ions present in aqueous solutions are stabilized by ion dipole interactions with the water molecules which are present.
An ionic equation can be written for any electrolyte which dissociates and reacts with the polar solvent. In a balanced ionic equation , number and type of atoms on each sides of reaction arrow are same. Even the net charge on both sides of the arrow is same.
There can only be a net ionic reaction when a precipitate is formed as the two solutions are mixed together.Thus, the correct option is no reaction.
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