Which of the following statements is TRUE?:
1. Reaction quotient is the concentration of the products raised to stoichiometric coefficients divided by the concentration of the reactants raised to their stoichiometric coefficients measured at any point in the reaction.
2. Reaction quotient is the concentration of the reactants raised to the stoichiometric coefficients divided by the concentration of the products raised to their stoichiometric coefficients measured at any point in the reaction.
3. Reaction quotient is the concentration of the products raised to the stoichiometric divided by the concentration of the reactants raised to their stoichiometric coefficients measured at equilibrium.
4. Reaction quotient is the concentration of the reactants raised to the stoichiometric coefficients divided by the concentration of the products raised to their stoichiometric coefficients measured at equilibrium.
5. Reaction quotient is the concentration of the products raised to the stoichiometric coefficients divided by the concentration of the reactants raised to their stoichiometric coefficients, at the point both are equal.

Reaction quotient is the concentration of the products raised to stoichiometric coefficients divided by the concentration of the reactants raised to their stoichiometric coefficients measured at any point in the reaction

Explanation:

The reaction quotient differs from the equilibrium constant in the sense that it can be calculated at any point in the reaction. It does not refer to equilibrium conditions. The reaction quotient provides vital information concerning the relative amounts of reactants and products in the reaction system at a given time. It can help us to figure out what direction a reaction is heading to. It can be measured at any stage of the reaction. See image attached for details.

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.