Calculate the [h3o'j in a solution that has a ph of 9.11. a) 7.8 x 10-10 b) 1.3 x 10-5 c) 9.1 x 10-9 d) 0.96 e) 0.69

The graph shows one consequence of urban sprawl. how did urban sprawl contribute to the change in biodiversity

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

In a covalent bond, two atoms are held together by the attraction between . the number of covalent bonds that an atom can form depends on the number of in the atom.