Which of the following is true based on the reaction below?
A. The HCO3- is the acid and water is the conjugate base
B. The water is the acid and the H2CO3 is the conjugate base
C. The H2OCO3 is the acid and the HCO3- is the conjugate base
D. The water is the acid and the OH- is the conjugate base

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?

Explain that newton first law,second law and third law of motion?

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?