Discover Questions

If a+b+c=4, ab+ac+bc=6, and abc=3, what is 1/a + 1/b + 1/c? How many milliliters of concentrated of sulfuric acid (18 M) are required to make 7.0 L of 0.12M H2SO4? Number Theory: Find the roots of 4x^2+6x+1 in Z11 (could you please explain step by step? THANKS!)? In one mole of the compound iron(III) oxide,
what fraction of the total number of ions is
the oxygen ion? How many molecules are in 97.8g of FeCl3?