Marie and Calvin tried to dissolve 45 grams of NaCl in 100 grams of water at 80oC. Only 40 grams dissolved; 5 grams settled at the bottom of the beaker. The solution is then said to be at 80oC.

What is the maximum amount of al2(so4)3 which could be formed from 15.84 g of al and 12.89 g of cuso4?

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)

Consider the story you just read. all but one of the choices below indicate that something is living.