A load of ore weighting 83.9 tons contains 12.8wt% FeS2 the amount of iron (Fe) obtained after processing this ore would be​

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.

Bis the

Adialysis unit requires 78.5 l of water.the estimated digit is 5. 

Answerchemical;