Reaction that is first order with respect to a and b
a) is dependent on the concentration of a and b.
b) is dependent on the concentration of a
c) has smaller rate constants than first-order reactions regardless of reactant concentration
d) is independent of reactant concentration
e) is always faster than first-order reactions due to loss of concentration dependence.

a) is dependent on the concentration of A and B.

Explanation:

For a reaction:

A + B → C

That is first order with respect a and B have a rate of reaction (v) of:

v = k [A]¹ [B]¹ (1)

Where k is rate constant.

First order with respect a reactant means the exponent in the concentration of the reactant is 1.

Knowing this:

a) is dependent on the concentration of A and B.  TRUE. The rate of reaction depends of A and B.

b) is dependent on the concentration of A . FALSE. The reaction depends also of B.

c) has smaller rate constants than first-order reactions regardless of reactant concentration . FALSE. Rate constant depends of several factors as temperature, type of reaction, etc.

d) is independent of reactant concentration . FALSE. It depends of A and B.

e) is always faster than first-order reactions due to loss of concentration dependence. FALSE. When the concentration of reactants is decreasing, the rate of reaction will also decrease.

I hope it helps!

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101