Answer:
Caffeine is a central nervous system (CNS) stimulant, having the effect of warding off drowsiness and restoring alertness.
Answer:
The van't Hoff factor for sodium chloride in X is 1.9 .
Explanation:
Mass of liquid x = 950 g = 0.950 kg
When 282 g of glycine are dissolved in 950 g of a certain mystery liquid X.
Depression in freezing point of the solution
Molality of the solution = m
The van't Hoff factor for glycine (non ionic) in liquid X= i =1
The value of molal depression constant for liquid X:
..(1)
Now 282. g of sodium chloride are dissolved in the same mass of X.
Depression in freezing point of the NaCl solution
Molality of the NaCl solution = m'
The van't Hoff factor for NaCl(ionic) in liquid X= i'
i = 1.9007 ≈ 1.9
The van't Hoff factor for sodium chloride in X is 1.9 .
Answer:
the positively charged particle found in atomic nuclel
Explanation:
protons carry positive charge and attracts negatively charged particles called electron
Answer:
c a reaction that requires energy
Explanation:
because it's moving kind of like a human is being more spontaneous by running and or movement it just sounds spontaneous if you think about energy and if you think about the way it works or away human being moved it's hard to explain but it just makes sense why would it be because it's more ordered that one is definitely the one that don't make sense I just don't think it has nothing to do with what it's trying to ask you this answer just makes sense and has a better understanding
Cooling water until it freezes