A student says that since the atomic theory is just a theory, it should not be considered useful. Which statement best argues against the student’s opinion?
Scientific theories change over time.
Scientific theories are the results of many experiments and observations.
Scientists often do not agree about specific details of scientific theories.
Scientists often propose competing theories.
Scientific theories do not become Scientific Laws.
Answers: 1
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Some molecular compounds, such as hcl, ionize completely in solution. for molecular compounds such as h2co3, most molecules do not ionize in solution. which describes the properties of these two solutes? a. hcl and h2co3 have the same effect on the properties of the solution. b. hcl raises the freezing point of water more than h2co3 does. c. hcl raises the boiling point of water more than h2co3 does.
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Which of the following reasons best explains why a scientist would want to replicate gregor mendel's pea plant experiment? a. to discover new aspects of the natural world b. to test the predictions of current theories c. to explain recently observed phenomena d. to test the conclusions of prior investigations
Answers: 1
A student says that since the atomic theory is just a theory, it should not be considered useful. Wh...
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