Which out of Cl, Cl– has higher electron affinity and why?

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

Name the element in group 17, period 2. (periodic table)

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)