I think it is c because food and clothing aren't technically chemicals however they do contain them so d is a possible answer but I think it is c
Answer: The Moon can sometimes appear in the sky during the daytime because it is the closest object to Earth, and because its orbital cycle means that sometimes it is brighter in the day than at night.
Answer:
Lighting helps produce oxidized forms of nitrogen such as nitrate
Explanation:
Answer: Molar mass of X is 106 g/mol
Explanation:
Depression in freezing point is given by:
= Depression in freezing point
i= vant hoff factor = 1 (for non electrolyte)
= freezing point constant =
m= molality
mass of solute = 908.0 mg = 0.9080 g (1g=1000mg)
Weight of solvent (dibenzyl ether)= 40.0 g = 0.04kg
Molar mass of solute (KCl) = 74.5 g/mol
Mass of solute = ?
Thus the molar mass of X is 106 g/mol