Listenbase your answer to this question on the information below. the catalytic converter in an automobile changes harmful gases produced during fuel combustion to less harmful exhaust gases. in the catalytic converter, nitrogen dioxide reacts with carbon monoxide to produce nitrogen and carbon dioxide. in addition, some carbon monoxide reacts with oxygen, producing carbon dioxide in the converter. these reactions are represented by the balanced equations below. reaction 1: 2no2(g) + 4co(g) →n2(g) + 4co2(g) + 1198.4 kjreaction 2: 2co(g) + o2(g) →2co2(g) + 566.0 kjdetermine the oxidation number of carbon in each carbon compound in reaction 2.co: +4, co2: +4co: +2, co2: +2co: +4, co2: - 4co: +2, co2: +4

- lead + phosphoric acid = hydrogen + lead(ii) phosphate

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.