2. Consider the reaction of zinc metal with hydrochloric acid, HCl(aq) as below: Zn (s)
+ HCl(aq) → ZnCl2 (aq) + H2(g)

A. Calculate the moles of HCl needed to react completely with 4.35 moles of zinc.

B. Calculate the grams of zinc chloride produced if 0.345 grams of zinc react
completely.

C. Calculate the mass in grams of hydrogen gas produced if .678 grams of HCl react
completely

Ase your answer to this question on the information below.hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant.the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen.chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product.nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion