Cho phản ứng:KHC2O4+KMnO4+H2SO4->co2+mnso 4+k2so4+h2o. tổng số nguyên tối giản trước các ion khi cân bằng theo phương pháp thăng bằng ion-electron là bao nhiêu

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)

When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two