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natita [175]
4 years ago
11

(b)

Chemistry
1 answer:
mixas84 [53]4 years ago
4 0

Answer:

Group 18th

Explanation:

The group 18th of periodic table which is composed of Noble gases mainly was missing from the Mendeleev's periodic table. The reason for this is that Noble gases are least reactive, therefore, it was difficult to predict such elements which do not react with other elements.

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Rina8888 [55]
I believe that the chemical formula for an acid often begins with H, which means C is your answer.
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4 years ago
The intake stroke of a positive displacement compressor is most similar to that of a
umka21 [38]

Answer:

D. two-stroke cylinder engine.

Explanation:

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5 0
3 years ago
The boiling point of an aqueous solution is 102.08 °C. What is the freezing point? Constants can be found here.
enyata [817]

Colligative properties calculations are used for this type of problem. Calculations are as follows:<span>


ΔT(freezing point)  = (Kf)(molality)
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Tf = 1.86m + 102.08

The concetration of the solution is needed in order to obtain a specific value.

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