Answer:
0.02685 M is the molarity of the barium hydroxide solution.
Explanation:
To calculate the concentration of acid, we use the equation given by neutralization reaction:

where,
are the n-factor, molarity and volume of acid which is 
are the n-factor, molarity and volume of base which is
mm.
We are given:

Putting values in above equation, we get:


0.02685 M is the molarity of the barium hydroxide solution.
The answer is C.
Alpha particles are simply helium-4 nuclei, with 2 protons and 2 neutrons. Charge is 2+, and mass is on the order of 4amu. Beta particles are either electrons or positrons, with charges of 1- and 1+ respectively. Their masses are fractions of amu, so alpha particles and beta particles differ in both mass and charge.
Hello!!
It should be
“the activation energy”
The independent variable would be the type of liquid the dependen is the evaporation rates