Hydrogen fuel cells combine hydrogen and oxygen to produce water and energy. assume 1 kg of fuel is used, and the mass of the water produced is 1.10 x 10-11 kg. how much energy is produced by this fuel cell?

Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.

Match the acid base pairs by arranging the acid name with the conjugate base formula. hydrogen carbonate hydrogen phosphate carbonic acid read water sulfuric acid phosphoric acid a. co32- b. hso4- c. hco3- d. po43- e. h2po4- f. oh-

In salt water solution,the salt is the blank