Alkali are soluble bases, however not all bases are soluble in water, therefore not all bases are Alkali.
D milk turning sour
the other options are physical changes
Answer: The mass in atoms of zinc is 0.405 g.
Explanation:
Given: Atoms of zinc =
It is known that 1 mole of every substance contains atoms. So, the number of moles in given number of atoms is as follows.
As moles is the mass of a substance divided by its molar mass. So, mass of zinc (molar mass = 65.39 g/mol) is calculated as follows.
Thus, we can conclude that the mass in atoms of zinc is 0.405 g.
1s2,2s2.2p6,3s2,3p6,3d4,4s2