23.10 grams of aluminum metal are dissolved in a solution that contains 1.89 mol of hydrochloric acid to yield aluminum chloride (alcl3 ) and hydrogen gas according to the following balanced chemical equation. what is the limiting reactant?
2al(s) + 6hcl(aq) → 2alcl3(aq) + 3h2(g)

Calculate the mass percent of hydrogen in methyl acetate

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)