Ivey Nugent asked 3/2/2011 Zinc(II)sulfide reacts with oxygen: 2ZnS(s)+3O2(g)--->2ZnO(s)+2SO2(g) A reaction mixture initially contains 4.6 mol ZnS and 7.2 mol O2. Once the reaction is completely as possible, what amount (in moles) of the excess reactant is left?
Jzy case asked 2/25/2011 A) What mass of Potassium Hydrogen Phthalate (KHP) will just neutralize 21 mL of 0.20 M NaOH?
Ivey Nugent asked 2/25/2011 What mass of silver nitrate (AgNO3) is required to make 250mL of a .125M solution of silver nitrate?
Eddie Ellis asked 2/19/2011 An individual's thoughts become more abstract, logical, and idealistic during which of the following periods of development?
sofa aminath asked 2/19/2011 Explain in terms of metallic bonding, why iron is a good electrical conductor?
Ivey Nugent asked 2/19/2011 Determine the empirical formula of serotonin if it is known to be 68.2% by mass carbon, 6.86% by mass hydrogen, 15.9% by mass nitrogen, and 9.08% by mass oxygen?
mu mun asked 2/14/2011 A 75kg adult sits at one end of a 9.0m long board.His 25kg child sits on the other end.(a)Where should the pivot be placed so that the board is balanced,ignoring the board's mass?
jimmy cranston asked 2/10/2011 How much sand,cement and gravel do i need to cover an area of 20m2 at 2" deep?
