5. When iodine crystals sublimate into iodine gas within a sealed flask, the
system will eventually reach a equilibrium
A. heterogeneous
B. homogeneous
C. static
D. reactant-favored

When iodine crystals sublimate into iodine gas within a sealed flask, the

system will eventually reach a heterogeneous equilibrium.

Explanation:

Sublimation is the process in which substances of solids gets converted into gases. In this process of sublimation there is no occurrence of intermediate state called liquid form.

In Iodine sublimation the iodine crystals are placed in a beaker and gets heated. During this heating the crystal form of iodine is converted to gas state without interference of liquid form. This is called Iodine sublimation.

This conversion of one form of reactants to other form of products comes under heterogeneous equilibrium.

answer; /// i do believe that the correct answer is (a) boiling

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.