All of the following can be used to define a base a. a hydronium ion donor in a reaction b. a substance that increases the concentration of hydroxide ions c. an electron pair donor in a reaction d. a substance that is a hydrogen ion acceptor in a reaction

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.