One of the reactions that occurs in a blast furnace, in which iron ore is converted to cast iron, is fe2o3 + 3co → 2fe + 3co2 suppose that 1.19 × 103 kg of fe is obtained from a 1.90 × 103 kg sample of fe2o3. assuming that the reaction goes to completion, what is the percent purity of fe2o3 in the original sample?

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent