2H2O <--> O2 + 2H2 If the concentration of O2 was increased will the equilibrium shift left or right Or not at all?

What is limiting reactant? with examples

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

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons