Question 1 CaC0 3(s) +2HCl (aq) ? CaCl 2(aq) + +H 2 0 (l) In the reaction above,

Question

Question 1

CaC03(s) +2HCl(aq) ? CaCl2(aq) + +H20(l)

In the reaction above, the rates of consumption of CaC03 doubled when the concentration of HCI was increased from 0.25 M to 0.50 M. What is the order of the reaction with respect to HCI?

Order [x] (numerical)

Question 2

Concentration, temperature, use of catalyst, surface area of particles, nature of reactants, and pressure are all factors that affect the ________of chemical reactions.Fill the blank space with any of the following words; activity, rate, state, reactants, products.

Explanation / Answer

1. For the given reaction we can say that

Rate of reaction=rate of consumption of CaCO3

From given data we can see that on doubling concentration of HCl the reaction rate doubles.

So reaction is ist order in HCl.

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