How many moles are in 4.55 x 103 grams of tin?

The speed of light is around 6.706×10^8 miles per hour. what is the speed of light in units of miles per minute?

If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)

The arrangement of particles is most ordered in a sample of