Để khử hoàn toàn 4,56 gam hỗn hợp X gồm FeO, Fe2O3, Fe3O4 cần 0,075 mol H2. Mặt khác hòa tan hoàn toàn 4,56 gam hỗn hợp X trong dung dịch H2SO4 đặc nóng dư thu được V ml khí SO2 (đktc), Tính V.

What provides structure to the human body?

Use the gizmo to find the concentration of the mystery ch3cooh. use the titrant and indicator shown below perform the titration. what is the titrant volume? titrant analyte indicator titrant volume analyte concentration naoh ch3cooh phenophthalein select one: a. 20.0 ml b. 27.0 ml c. 30.0 ml d. 24.0 ml

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride