Describe hydrogen bonding
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How is the motion of the particles of water at 80 ⁰c different from the motion of the particles of water when it is 30 ⁰c?
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As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes
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Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans
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Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.
Answers: 1
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