1. In the periodic table, all the elements in the same column have similar
and
properties.

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.

State one important difference between a physical change and a chemical change?

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above