What is the name of the -OCH3 group?
A) methyloxy
B) methoxy
C) oxymethyl
D) oxymeth
B
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A skillet is lined with a thin layer of cooking oil followed by a layer of unpopped popcorn kernels. Upon heating the kernels, all pop thereby escaping the skillet. Which of the following physical and/or chemical changes occurred?
A. The water within each kernel is heated to the point that it would turn into water vapor as the kernels popped (physical change). B. The starches within the kernels are cooked by the high temperatures (chemical change). C. Both A and B occur. D. Physical and chemical changes cannot occur without a real chemical reaction taking place.
During the process of excretion, ________ moves from capillaries into ________
A) blood; the loop of Henle B) blood; the distal tubule C) the filtrate; Bowman's capsule D) the filtrate; the proximal tubule
If you want to have a good snowball fight, you should wait for a day when it is snowing and:
A) the temperature is below -5°C (23°F). B) the snow is very powdery. C) the dew point is below -10°C. D) the temperature is above -5°C (23°F).
A rectangular stream pattern consists of long parallel streams linked by short, right-angled segments
Indicate whether the statement is true or false