Discover Questions

Given chemical reaction, calculate how many moles of oxygen are needed to completely react the 5.15 moles of iron. 4 Fe + 3 O2 -> 2 Fe2O3? Can you explain what proportional representation is in the simplest terms? Worksheet Help Q3= How many tetrahedral carbon atoms are in: cyclopentane and its' isomers methylcyclobutane, and ethylcyclopropane (C5H10)? Pre-Calc Help Please. Long division for (x^3-3x^2+6x)/(x^2-2x+2) The remainder is 2x+2 but I got -1 for the quotient & the quotient is wrong? Is miles per hour speed or time?