<span>Li has fewer electrons than Li+ (protons can't change)
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Answer:
The correct answer is A.
Explanation:
The acids with hydrogen atoms in them are the ones that dissolve best in water and when they do, they get diluted, raising their pH level by releasing hydrogen ions (H+) into the solutions.
So when acids get dissolved in water, positively charged hydrogen atoms are released.
The answer is A.
I hope this helps.
The desirable soil pH for corn ranges from 5.8 to 7.0.
Explanation:
It is known that entropy is the measure of degree of randomness present in a substance due to the movement of its molecules.
More randomly the atoms are moving from one place to another more will be the entropy of system.
In order to calculate the entropy, we divide the amount of heat transferred by the temperature at which heat transfer occurs.
As the given temperature is 296.95 K and heat of vaporization is 24.8 kJ/mol. Therefore, calculate the molar entropy of vaporization as follows.
Molar entropy of vaporization =
= 0.08351 kJ/mol K
Thus, we can conclude that molar entropy of vaporization of is 0.08351 kJ/mol K.
I believe the correct answer would be E. When aqueous solutions of NiBr 2 and AgNO3 are mixed, a precipitate forms. As these two solutions are being mixed a reaction would happen resulting to two new compounds which are nickel nitrate and silver bromide. The reaction would be:
NiBr2 + AgNO3 = NiNO3 + AgBr2
The precipitate that would be formed would be the silver bromide since most of the silver compound are not or has low solubility in water while most of the nitrate compounds are very soluble in water. Most likely, it would be the silver bromide that is the precipitate.