What is the lowest energy level that contains d orbitals?
O A. 4
O B. 3
O C. 2
D. 1

Different isotopes indicate that an element will have different numbers of

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Using this reversible reaction, answer the questions below: n2o4 2no2 (colorless) (reddish-brown) -as the temperature increased, what happened to the n2o4 concentration? -was the formation of reactants or products favored by the addition of heat? -which reaction is exothermic? right to left or left to right? -if the change of enthalpy of this reaction when proceeding left to right is 14 kcal, which chemical equation is correct? n2o4 2no2 + 14 kcal n2o4 2no2, hr = +14 kcal n2o4 + 14 kcal 2no2 n2o4 2no2, hr = -14 kcal