[PICTURE ATTACHED] help please

What is the number of atoms in 3.54 mol s

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

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