Answer:
The correct option is;
D. Calcium chloride breaks into 3 ions, while sodium chloride only breaks into 2 ions
Explanation:
To help melt the ice on icy streets, calcium chloride (CaCl₂) is a more preferred salt type to sodium chloride (NaCl) as when it dissociates into ions in the ice, it forms three ions: a calcium ion, Ca²⁺, and two chloride ions, 2 Cl⁻, while sodium chloride forms two ions: one sodium ion, Na⁺, and one chloride ion, Cl⁻
According to the freezing point depression equation, we have;
ΔT = 
× m × i
Where;
ΔT = Change in freezing point temperature
= The freezing point depression constant
m = The solution's molality
i = van't Hoff factor
The calcium chloride salt will cause the most depression because the van't Hoff factor is 3 for calcium chloride and 2 for sodium chloride.
Why does the moon and the sun have the same mass?
Answer: The difference is that, on the moon, you are much lighter than on the Earth, but you still have the same mass
Answer:
<h3>The answer is 0.33 m/s²</h3>
Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
where
m is the mass
f is the force
a is the acceleration
From the question
f = 25 N
m = 75 kg
We have
We have the final answer as
<h3>0.33 m/s²</h3>
Hope this helps you
Add more solute..............
Answer:
c.) riding your bike
Explanation:
Playing chess doesn't require any physical challenges, just mental
While watching basketball, you don't physiclly move
Riding a bike requires physical movement and acceliration
Therefore C is the correct answer
