Please I need help ASAP . I will mark brainliest
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Chemistry, 21.06.2019 15:00
How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.
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Chemistry, 22.06.2019 01:40
Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.
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Chemistry, 22.06.2019 05:50
Why doesn't heat added to water make the tempature rise above 100c
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Mathematics, 21.05.2021 16:30
Mathematics, 21.05.2021 16:30
Mathematics, 21.05.2021 16:30
Mathematics, 21.05.2021 16:30
Physics, 21.05.2021 16:30
Mathematics, 21.05.2021 16:30
Mathematics, 21.05.2021 16:30
Mathematics, 21.05.2021 16:30
Mathematics, 21.05.2021 16:30