Write the balanced equation, then outline the steps necessary to determine the information requested: What is the number of moles and the mass of magnesium carbonate, MgCO3, required to produce 283 g
of carbon dioxide? (MgO is the other product.)

the answers would be

the first one and the second one

i think its 100

i hope this !

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