False because the biologist is measuring the length of the salmon, which is quantitative data.
Mghcl14 + H2 = mghclh 16 work needed to solve this problem
<span>Each second, solid sodium chloride dissolves and solid sodium chloride recrystallizes.
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Answer:
The correct answer is - 4-nitroaniline.
Explanation:
It is given that all three solid compounds salicylic acid + 4-nitroaniline + naphthalene are equal in the ratio in the mixture and then 1 gram of this mixture is dissolved in the diethyl ether and run a drop of the solution on TLC plate. This plate shows three spots.
The salicylic acid and naphthalene would stay dissolved in the diethyl ether solution due to the 4-nitroaniline could be extracted by adding aqueous acid and involve in the aqueous layer and thus spot of 4-nitroaniline would be with largest Rf value.
I believe your answer is: What is the enthalpy of formation of magnesium oxide?
Hope this helps! :)
