Use curved arrows to show the movement of pairs of electrons in the following reaction between a Lewis acid and a Lewis base, and show the structure of the product. 
Definitions:
Machine-Hours
A measure of production volume or activity based on the number of hours machines are operated within a specified period.
Predetermined Overhead Rate
A rate used to allocate manufacturing overhead costs to products or job orders, calculated before the period begins based on estimates.
Direct Labor-Hours
The entire duration of work performed by staff members directly participating in the manufacturing chain.
Machine-Hours
A measure of the total time machinery is in operation during a specified period, often used in allocating manufacturing overhead costs.
Q21: Place the following compounds in the order
Q21: The nurse from New York City is
Q29: What is the correct assignment of
Q32: Which species is the conjugate acid in
Q36: What is "X" in the following structure?
Q45: What is the smallest trans cycloalkene that
Q51: Complete the following diagram so that it
Q58: Consider the reaction below to answer the
Q67: What is the major organic product obtained
Q73: The energy released on the addition of