Biology, 19.07.2019 20:00, whitethunder05
Five groups of students in mr. walker's science class performed an experiment to determine the effect of salt on the boiling point of water. each group dissolved 5g of salt in 100ml of distilled water, heated the solution and recorded the boiling point with a thermometer that had divisions of 0.1°c. each group obtained exactly same boiling point for the salt solution, 100.8°c. are the results valid? no, because too little salt was used. b)no, because it was not a controlled experiment. c)yes, because each group obtained the same results. d)yes, because the thermometer had divisions of 0.1°c.
Answers: 2
Biology, 22.06.2019 02:30, vcwann6055
Which of these is most likely to happen if parallax measurements of star distances are taken after a gap of six months? the results would be accurate the results would be inconsistent the results would not be valid the results would not be repeated
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What advantages does a pedigree have over a written passage?
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Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast
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