1. Consider the following equilibrium: Cr2O72-(aq) H2O(l) 2CrO42-(aq) 2H (aq) a. Predict the shift in system at equilibrium if a solution of AgNO3 is added dropwise to the system at equilibrium. Briefly explain.

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