Answer:
D- Radiation knocks electrons out of gas atoms, which allows the gas to conduct an electric current.
Explanation:
Edge 2021
True
False
b. mixture
c. solution
d. molecules
Answer:
The formula for molality is m = moles of solute / kilograms of solvent. In problem solving involving molality, we sometimes need to use additional formulas to get to the final answer. One formula we need to be aware of is the formula for density, which is d = m / v, where d is density, m is mass and v is volume
Explanation:
it is a measure of the concentration of a solute in a solution in terms of amount of substance in a specified amount of mass of the solvent. This contrasts with the definition of molarity which is based on a specified volume of solution.
(2) CO2 (4) N2
Answer: Option (3) is the correct answer.
Explanation:
It is known that like dissolves like that is, a polar solvent will dissolve only polar compounds. Whereas a non-polar solvent will dissolve only non-polar compound.
Substances whose atoms have large difference in electronegativities are polar in nature. Water is a polar solvent and it is able to dissolve polar molecules.
For example, HCl is a polar or ionic compound so it is soluble in water.
On the other hand, , , and are all non-polar as bond between them is formed due to sharing of electrons.
Hence, we can conclude that at STP, HCl is the substance that is most soluble in .