An unknown compound has the molecular formula C9H11Br. Its 1H NMR spectrum shows the following absorptions:singlet, 7.1 ppm, integral 44 mm;singlet, 2.3 ppm, integral 130 mm;singlet, 2.2 ppm, integral 67 mm. Draw the structure of the compound.

One or more substances changing into one or more substances is an example of a

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

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.