The first step in the industrial recovery of zinc from the zinc sulfide ore is roasting, that is, conversion of zns to zno by heating: 2zns(s)+302(g)- 2zno (s)+2s02(g) ah--879 kj calculate the heat released (in kj) per gram of zns roasted.

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

Achemical equilibrium between gaseous reactants and products is shown. n2(g) + 3h2(g) ⇌ 2nh3(g) how will the reaction be affected if the pressure on the system is increased? it will shift toward the reactant side as there is lower pressure on the reactant side. it will shift toward the product side as there is higher pressure on the product side. it will shift toward the reactant side as there are a greater number of moles of gas on the reactant side. it will shift toward the product side as there are a fewer number of moles of gas on the product side.