Chem 2"
elizabeth
although expensive, platinum is used as a catalyst to break down harmful gases in car emhaust into less harmful gases which
statement best describes platinum in this use?

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

How will the emission of an alpha particle affect the atomic number of an atom

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