A family goes on a walk beside a large river. What would most likely happen to the river if the oceans did not exist? The river would get larger because it would snow and hail more often.
The amount of living things in the river would increase.
The river would get smaller because there would not be as much precipitation.
The river would get larger because there would be less evaporation.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.