Define element and compound. explain the difference between an element and a compound.

Does all atoms have a positive charge

How many moles of O2 would be needed to produce 3.2 moles Fe2O3?

Whitch constellation has the most stars

Weather satellites are usually placed on: north-south orbits east-west orbits oblique orbits synchronous orbits

How much water would be formed if 4.8g of H reacted with 38.4g of O?

The mass of 1 mol of chromium (atomic mass 51.996 amu) is

Which of the following elements will tend to form a cation? A. Oxygen B. Nitrogen C. Sulfur D. Lead E. All of the Above

Is pure orange juice a solution or a suspension

If a catalyst is used in a reaction: a. the energy of activation increases. b. the reaction rate does not change. c. the reaction rate increases. d. the equilibrium shifts.

Methanol (CH3OH) is produced commercially by the catalyzed reaction of carbon monoxide and hydrogen: CO (g) + 2H2 (g) ⇌CH3OH (g). An equilibrium mixture in a 1.50 L vessel is found to contain 0.0679 mol CH3OH, 0.160 mol CO, and 0.302 mol H2 at 500 K.