What is the formula of the compound formed by potassium and chlorine?
A) KCl
B) KCl2
C) KCl3
D) K2Cl
A
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A) Niels Bohr B) Albert Einstein C) Sir Isaac Newton D) George Hale E) Galileo
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A) Carbon dioxide B) Radon C) DDE D) PCB E) Bisphenol A (BPA)
What has been one consequence of desertification?
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A hurricane watch is issued when
A) hurricane conditions are possible for a particular coastal region. B) hurricane conditions are expected for a particular coastal region. C) hurricane conditions are possible for a particular oceanic region. D) hurricane conditions are expected for a particular oceanic region.