At chemical equilibrium, the amount of product and reactant is zeroproduct and reactant remains constantproduct is zero because all molecules have the same activation energyan equal number of molecules take part in the reactionthe rates of the forward and reverse reactions are equal.

Noble gases is far right

B. a graduated substance

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.