Based upon the following equation: 2 k + 2 hcl --> 2 kcl + h2 how many moles of k are needed to form 0.3 moles of h2? *
a) 0.15
b) 0.3
c) 0.6
d) 0.9

From the given balanced chemical reaction it is signified that in every 1 mole of H2 will require 2 moles of K. Using the concept of ratio and proportion, with x being the number of moles of H2,
                                    2/1 = 0.3/x
The value of x from the equation, 0.15 moles. 

Idk the answer sorry

A.(nh4)(2co3)is the correct answer