1. classify calcium: a. s = homogeneous mixture/solution b. e = element c. c = compound d. he = heterogeneous mixture 2. classify pizza: a. he = heterogeneous mixture b. e = element c. c = compound d. s = homogeneous mixture/solution 3. classify carbon monoxide: a. he = heterogeneous mixture b. c = compound c. s = homogeneous mixture/solution d. e = element

How can you use chemical equations to predict the products of the reaction you can carry out?

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids