Stoichiometry Name
Use the correct significant figures, units and include a set-up of the problems.
1. A hydrate of calcium sulfate Al2(SO4)3?H2O is gently heated and the water is driven off.
The following measurements were written down during the lab:
Mass of crucible
21.426 g
Mass of hydrate with crucible
22.020 g
Mass of heated crystal and crucible
21.939 g
Determine the value of the question mark above in front of the water.
Tell how to make sure all of the water is driven off the crystal.

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.

false

because it does not have the potential to be entirely used up

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.