Silicates a. have the silicon-oxygen tetrahedron as their structural unit. b. form through the evaporation of water. c. are classified on the basis of what kind of metals they contain. d. are a large category of minerals that includes the common minerals calcite and dolomite.

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