When hydrogen reacts with chlorine the gas hydrogen chloride is produced: H2(g) + Cl2(g) → 2HCl(g) Calculate the energy change of the reaction and state whether the reaction is exothermic or endothermic.

Usually this mountain-building process produces majestic peaks and steep slopes. you should look for these along the other features.

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.