Answer : The concentration of the NaOH solution is, 0.738 M
Explanation :
To calculate the concentration of base, 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 NaOH.
We are given:

Putting values in above equation, we get:


Thus, the concentration of the NaOH solution is, 0.738 M
Answer:
It is a combustion reaction
Explanation:
Hydrogen oxygen argon carbon hope you get a 100
2K + Cl₂ ⇒ 2KCl
2Ca + O₂ ⇒ 2CaO