For each salt, determine how much will remain undissolved if 500 g is mixed into a liter of pure e water at 40 °C. One significant figure is sufficient in each answer.

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

How many moles of al3+ ions are in 1.25 moles of al2o3