Which of the following are true of the building on the scree…

Which of the following are true of the building on the screen?   Was designed according to the Gothic geometrical principles used to design the dome of the cathedral in Florence Illustrates the use of a loggia as a transitional zone Illustrates the designer’s interest in the relationship between his buildings and the space surrounding them Was designed according to the same system of proportions as the piazza in front of the building Has a series of sail or cloister vaults over the loggia

Bromobutane (C4H9Br) is the desired product in the following…

Bromobutane (C4H9Br) is the desired product in the following reaction:  C4H9OH + NaBr + H2SO4  –> C4H9Br + NaHSO4 + H2O What is the atom economy of this reaction? Answer in % to the ones place. Use these molecular masses: Table of molecular masses Substance Mass (g/mol) C4H9OH 74 NaBr 103 H2SO4 98 C4H9Br 137 NaHSO4 120. H2O 18