Which of the following elements will most likely form an ion with a ?1 charge?
A. Cl
B. Ne
C. Na
D. Mg
E. S
Answer: A
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If an object has no acceleration of any kind, then we can say for certain that it is
A. moving at constant nonzero velocity. B. at rest. C. in mechanical equilibrium. D. all of the above
Sub-Saharan Africa is home to what percent of the global HIV/AIDS epidemic?
A) 25% B) 10% C) 5% D) 50% E) 70%
Which of the following is true?
A. the higher the species richness, the lower the productivity B. the higher the species richness, the lower the sustainability C. the lower the species richness, the greater the productivity D. the lower the species richness, the greater the sustainability E. the higher the species richness, the greater the sustainability
Which property tells you if a gas will rise and dissipate?
a. Specific gravity b. Vapor density c. Explosive limits d. Flash point