Balance each of the chemical equations below. (Some equations may already be in balance.) In the space above of the letters (A, B,C...), classify the reaction as a synthesis (S), decomposition (D), single replacement (SR), or double replacement (DR) reaction i will give brainliest :)

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

Light waves can move through , but they travel fastest when they move through a(n) .

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?