Identify what type of reaction is taking place: CH3CH3 + Br2 -> CH3Br + HBr

A. Addition
B. Fermentation
C. Substitution
D. Elimination

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

All of the following are part of the biosphere except

Which fact represents evidence for the big bang theory?