Natural gas is primarily composed of methane (CH4)
Natural gas is a naturally occurring hydrocarbon mixture which is primarily composed of Methane(CH4), but it also contains ethane,propane and heavier hydrocarbon. In addition it contain small amount of nitrogen, carbon dioxide,hydrogen sulfide and traces amount of water.
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3.) Charge on one molecule of PO4 is -3. So on two molecule it'll be 2(-3) = -6. Let oxidation number of Pb be x. Therefore, 3x+(-6) = 0. 3x=6. x=2.
<h3><u>Answer</u>;</h3>
<h3><u>Explanation</u>;</h3>
- Elements in the periodic table are classified into various categories including alkali metals, alkaline-earth metals, halogens, and noble gases among others.
- <u>Alkali metals are Group 1 elements in the periodic table.</u> They comprise of elements lithium (Li) through francium (Fr). They have similar characteristics and behavior.
- <u>Halogens is another category of elements which is a subset of the nonmetals.</u> They comprise group 17 of the periodic table, from fluorine (F) through Astatine (At). These elements are chemically reactive and reacts with other elements such as group 1 and group 2 element.
