In the reaction A+B → C + D, what are the reactants? O A. A and B
O B. A and C
C. Just B
O D. C and D

A. A and B

Explanation:

The reactants in this reaction is A and B;

 Reaction:

      A + B → C + D

In a chemical reaction, the left hand side is made up of the reactants.

On the right hand side, we have the products

For the example given;

   A and B are the reactants

   C and D are the products

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally