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...5.6g of the element contain? 8g of X2O3, and oxide of element X, contains 5.6g of X. How many moles of X does 5.6g of the element contain? a) 2.4/16 x 2/3 b) 2.4/16 x 3/2 c) 8/16 x 2/3 d) 8/16 x 3/2 Please explain your answer, because i couldn't get any workings from the answer key as its...

...upwards. A car of mass 700kg...? On a car racing circuit, there is an escape lane made up small stones sloping upwards. A car of mass 700kg approaches at a speed of 40m/s. The brakes fail and the car stops in the escape lane. The car comes to rest 40m along the escape lane. Calculate the...