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

1. baking powder is a 1: 1 molar mixture of cream of tartar (khc4h4o6) and baking soda (nahco3). a recipe calls for two teaspoons (a total of 8.0 grams) of cream of tartar. how much baking soda must be added for both materials to react completely?

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?