Which statement best describes a solution?

a) a mixture consisting of minute particles suspended in a medium that start moving about as soon as the mixing process stops.
b) a mixture consisting of larger particles suspended in a medium that start settling down as soon as the mixing process stops.
c) a mixture having a uniform composition where the components can't be seen separately and all components are in the same state.
d) a mixture having a uniform composition but the components can be seen separately and all components are in a different state.

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

Fossil fuels are organic compounds that are made from

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .