Hi everyone, I'm really stuck on a question for my uni assignment, i just dont understand chemistry at all, i was wondering if anybody could help me please I need to balance C2H6 and explain how I balanced it but I just dont understand how

2C2H6+7O2=4CO2+6H2O

Explanation:

C2(DIVIDE BY2)H6+7(DIVIDE BY 7)/2(DIVIDE BY 4)O2=2CO2+3(DIVIDE BY6) H2O

mention the spill to the teacher clean the area and throw the broken pieces away

explanation:

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.