Use your balanced reaction to make a "for every" statement for magnesium and hydrochloric acid in this reaction A: For every 1 mol of magnesium, the reaction makes 1 moles of hydrochloric acid.

B: For every 24.305 mol of magnesium, the reaction uses up 34.46 mol of hydrochloric acid,

C: For every 1 mole of magnesium, the reaction uses 2 moles of hydrochloric acid.

D: For every 1 mol of magnesium, the reaction uses 1 mol of hydrochloric acid.

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?