Write a balanced half-reaction for the reduction of gaseous oxygen to liquid water in basic aqueous solution

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]

Scientist think that animals with remarkably similar embryo development probably shared a common ancestor