How can you tell a ca(no3)2 solution from a zn(no3)2 solution?

Explanation:

1) solution

To the solution of calcium nitrate add few drops of sodium hydroxide. Formation of white solid calcium hydroxide will be observed.

2) solution

To the solution of add few drops of liquid ammonia which will precipitate out white gelatinous zinc hydroxide from the solution. And this zinc hydroxide gets dissolves when excess of liquid ammonia is added to the solution.

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.

can you attach the