Discover Questions

Why did my beard go grey before my head? Find the equation of the plane passing through the points (1,1,2) and (2,4,3) and perpendicular to the plane x-3y+7z+5=0.help me out thanks? What if gold came from dinosaur urine? Hi guys, In this compound (NH4)2Cr2O7 How can I determine the oxidation number for N and Cr? If H= +1 and O=-2? (2x10 negative 4) (2x10 negative 1)?