How does the concentration of reactants affect the rate
of Chemical reaction? explain in short​

The increase in the concentration of reactants increases the frequency of effective collisions.

Explanation:

The concentration of reactants determines the rate of reaction by providing the number of reactants available to yield an effective collision. There is a direct relationship between the concentration of reactants and rate of reaction.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock

50.23 i believe is correct but don't quote me on that.