Answer:
A- Solubility decrease.
B- Solubility increase.
C- No solubility change.
Explanation:
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In this case, since the solubility of salt stands for the maximum amount of salt that can be added to a specific mass of water, usually 100 g; we need to take into account that for table salt in aqueous solution, the higher the temperature the larger the solubility and the lower the temperature the smaller the solubility; it means that more salt is dissolved in the same mass of water at higher temperatures and vice versa. Therefore, A- would decrease the solubility as the solution is cooled down and B- would increase the solubility as the solution is heated up.
Moreover, since the mass of water is assumed to remain the same, adding more salt do not affect the solubility but increase the degree of saturation of the solution up to supersaturated, yet the solubility remains unchanged.
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A methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogenatoms — CH3. In formulas, the group is often abbreviated Me. Such hydrocarbon groups occur in many organic compounds. It is a very stable group in most molecules.
Answer:
A mole is the same idea as a dozen, but the number involved is a lot bigger than 12. In fact, one mole is equal to 6.02 x 1023 items. This number is also called Avogadro's Number, and is sometimes abbreviated NA. Memorize this conversion factor!
Explanation: