Any base whose conjugate acid has a pK a greater than can remove a proton from a terminal alkyne to form an acetylide ion (in a reaction that favors products).

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

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

answerambulatory;

a chemical change results in a new substance being formed; whereas a physical change will result in a different state of matter

explanation: