In the following chemical equation, what should be the coefficient that comes in front of the Zn? *
Zn + HCl → ZnCl2 + H2

What’s the solution?

Sorry i dont understand the question can you rephase it?

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).