If 5.5 grams of chlorine reacts with aluminum, how many grams of aluminum chloride will be formed according to the following reaction?

What is the value of keq for the reaction expressed in scientific notation?

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

Air can be considered a mixture. which statement does not explain why?