When a weak acid ( HA ) is titrated with a strong base, such as NaOH what species are decreasing in concentration before the equivalence point is reached? Na + Na + and A − A − HA HA and H + H + ( H 3 O + ) ( H 3 O + ) Na + Na + and OH − OH − HA HA and A − A −

How many atoms are in 1.4 mil of phosphorus trifluoride (pf3)

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?