I need someone who is smart in chemistry to help me with my test please!!

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

What happens to isotopes that are unstable?

How does a large body of water, such as the ocean, influence climate?