What is molality?

A. concentration of a solute is mol/kg solvent

B. concentration of a solute in grams/10 exponent 6

C. concentration of a solute in mol/L solution

D. concentration of a solute in mol/mol solution

Its either A or C. it depends on the situation.  

Explanation:

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clouds form

solid ice forms on leaves.

water droplets form on grass.

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation: