What is the correct balanced equation for the following:
aluminum + copper(II) sulfite -> copper + aluminum sulfite
(A) 2A + 3CuSO2 -> Cu + Al(SO)2

(B) 2A1 + 3CuSO4 -> 3Cu +Al2(SO4)3

(C) Al + CuSO3 -> Cu + AISO3

(D) 2A1 + 3CuSO3 -> 3Cu + Al2(SO3)3

Option (D). 2Al + 3CuSO3 —> 3Cu + Al2(SO3)3

Explanation:

Let start with the following

Al + CuSO3 —> Cu + Al2(SO3)3

There are 3 atoms of SO3 on the right. And 1 on the left. So to balance it, put 3 in front of CuSO3 as shown below:

Al + 3CuSO3 —> Cu + Al2(SO3)3

Now we need to balance Cu on the right, since there are 3 atoms of Cu on the left. To do this, put 3 in front of Cu as shown below;

Al + 3CuSO3 —> 3Cu + Al2(SO3)3

There are 2 atoms of Al on the right and 1 atom on the left. It must be balanced by putting 2 in front of Al to bal the equation as shown below;

2Al + 3CuSO3 —> 3Cu + Al2(SO3)3

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.