The name most commonly given to the land mass which existed when the continents were joined is a) gonwanda b) afrimerica c) collasus d) pangea

Endeleev saw trends in the physical and chemical properties of elements when he organized them by

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.

Consider the directing effects of the substituents on salicylamide and predict the possible structures of the iodination products. which do you think will be the major product?