3 Chemical Equation
3CaCl2 + 2Na3PO4 → Ca3(PO4)2
Ca3(PO4)2 + 6Naci
Which of the following correctly describes the chemical equation above?

they emit helium gas that attaches to nearby planets.

they remove low-mass elements from the planets’ crust.

they cause nuclear fusion inside the inner core of planets.

they produce heavy elements such as iron and gold.

explanation:

14 days is the half-life of phosphorus-32

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