I’m pretty sure it’s true
Answer:
168°C is the melting point of your impure sample.
Explanation:
Melting point of pure camphor= T =179°C
Melting point of sample =
= ?
Depression in freezing point = 
Depression in freezing point is also given by formula:

= The freezing point depression constant
m = molality of the sample = 0.275 mol/kg
i = van't Hoff factor
We have:
= 40°C kg/mol
i = 1 ( non electrolyte)




168°C is the melting point of your impure sample.
Answer:
Collision theory states that when suitable particles of the reactant hit each other, only a certain fraction of the collisions cause any noticeable or significant chemical change; these successful changes are called successful collisions.
Explanation:
HOPE THIS HELPS
Answer: B. Adding more protons to a positively charged body until the number of protons matches the number of electrons
Explanation:
took test got it right
Explanation:
An ionic equation will be the one in which all the participating species will be present as ions.
The given reaction will be as follows.

Balancing this equation by multiplying
by 2 and
by 3 on reactant side. Whereas multiply KBr by 6 on product side.

Hence, the net ionic equation will be as follows.

As both
and
are spectator ions. Hence, the net ionic equation will be as follows.