Which of the following is a chemical change? a water vapor in the air turns to liquid water in the form of rain b the oxygen in the air forms ozone in presence of uv rays c dust and soot particles being suspended in the air d sulphur dioxide being released in the air

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)