How many atoms are in 6.9 mol Zn?

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

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)

Why is the melting of ice a physical change ?