How does the density of the earth’s core compare to the other layers of the earth?

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

What are the first three quantum numbers for the electrons located in subshell 2s?