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How many covalent bonds can nitrogen have? a. 0 c. 2 b. 1 d. 3
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The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)
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How many covalent bonds can nitrogen have? a. 0 c. 2 b. 1 d. 3...
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