Write the equation that matches the description: One atom of zinc reacts with one atom of sulfur to yield one molecule of zinc sulfide.

i ACTULLY ALREADY KNOW THE ANSWER, its: Zn+S→ZnS but i wanna give yall free points, S dont tell or else they will report me :(

Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

Draw the lewis dot structure for each of the following polyatomic ions