Fe2O3 + 3CO -> 2Fe + 3CO2 If 15.5 grams of Iron (III) oxide reacts completely in the presence of excess carbon monoxide, how many grams of elemental iron is formed?​

What is i fracture in the crust called when land move up, down or sideways

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume