Elements that can be described by the hardness shininess and ductility

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

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