5. The reaction between zinc and hydrochloric yield zinc chloride and hydrogen gas. Which of the these is a
correctly balanced equation that models the reaction?
A. Zn+ HCI — ZnCl2 + Hy
B. Zn + 2HCI — ZnCl2 + 2H2
C. Zn + 2HC→ ZnCl2 + Hz
D. Zn - 4HCI — ZnCl2 + 2H2

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90