There are places in America and other parts of the world where herds of wild horses live, well-adapted to the environment. If mules are so much better adapted to harsh environments than either horses or donkeys, why have there never been populations of wild mules?
A.
because mules are domesticated animals
B.
because mules cannot reproduce
C.
because mules are not natural
D.
all of these

i dont know the answe

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

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.