Life appeared on Earth during... a) the Hadean Eon b) Precambrian Time c) a period d) an epoch​

Zinc + lead(ii) nitrate yield zinc nitrate + leadwhat's the chemical equation for this?

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

Explanation for basic character?