Aplatinum wedding band contains 0.077 mol of platinum. how many atoms of platinum are in the 15-gram platinum wedding band? a) 3.09 x 1021 atoms b) 4.64 x 1022 atoms c) 7.82 x 1024 atoms d) 1.17 x 1026 atoms

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

One similarity and one difference between an element and a mixture of elements

What two factors can affect the properties of a hydrocarbon? a. the number of its carbon atoms and the number of single bonds b. the number of its carbon atoms and the arrangement of its atoms c. the arrangement of its atoms and the number of its double bonds