The percentage by mass of the compound of water is going to be 8.62%.
White crystalline salt contains an ionic bond because it is formed due to the transfer of electrons from one atom to another.
It is a solid 100%............
Answer : B) In step 2, there was a chemical change which was observed in sugar.
Explanation : In A step 2 there was a physical change that was seen. By just boiling the dissolved salt solution salt was obtained. Therefore, it is a physical change. In B step 2 there was a chemical change seen as sugar solution was thickened and turned brown. It was not obtained in its original form; there was a chemical reaction that took place during sugar evaporation. As chemical change is the one where the reaction is irreversible.
Therefore only in B step 2 there was a chemical change that was observed.
Hello!
The ions that are present in solution are Ni⁺²(aq) and Cl⁻(aq)
Why?
When an ionic substance like Nickel Chloride (NiCl₂) dissolves in water, it dissociates into the individual ions that form the substance. Water molecules surround then the individual ions in a process called solvation.
It can be represented in the following chemical equation:
NiCl₂(s) → Ni⁺²(aq) + 2Cl⁻(aq)
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