A 5.0 Gram sample of a hydrate BaCl₂⋅ 2H₂O was heated, and only 4.3 grams of the salt remained. What percentage of the water was in the hydrate?

3

explanation:

6.4 cm (max) - 25 cm (min)

elements make up everything, and they combine to make compounds.

the answer is c

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l