When making copper sulfate from copper oxide, the solid copper oxide must be added to the acid in excess i. e. there will be some unreacted
copper oxide left in solution). This is because this base is... whar?

insoluble
alkaline
acidic
neutral
soluble

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)

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles