Another saturated solution containing 106gAl * (NO3)3 / 100 g H2O O at 60^C (=106g) is very carefully cooled down in an ice bath (0 ^ 5 * C) (=60g) to produce an unstable supersaturated solution. A single tiny "seed crystal" is then added to induce crystallization. How many grams of Al(NO 3 ) 3 will crystallize out of the solution when it returns to being a saturated solution?

Consider the heating curve of h2o and line segments a, b, and c. several changes are taking place at a, b, and c. all but one would be an appropriate description as e move through segments a, b and then c.

Which example is a mechanical wave?     a.microwave    b.radio wave    c.water wave    d.ultraviolet light

The zinc within a copper-plated penny dissolves in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can reach the zinc). the reaction between the acid and the zinc 2h+(aq)+zn(s)→h2(g)+zn2+(aq) . when the zinc in a certain penny dissolves, the total volume of gas collected over water at 25 °c is 0.947 l at a total pressure of 743 mmhg . (vapor pressure of water is 23.78 mmhg at 25 °c .) what mass of hydrogen gas is collected? answer in appropriate significant figures