Chemistry, 09.09.2020 20:01 juliapreciiado
Which of the following is true about extinction? A. Only one extinction has occurred during the Earth's history. B. Plant species can become extinct, but animal species cannot. C. Extinctions have occurred many times throughout the Earth's history. D. Animal species can become extinct, but plant species cannot.
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Numbers with a end value of 4 or lower are rounded up, while with an end value of 5 or higher are rounded down. true or false?
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Litmus paper is made from water-soluble dyes which are extracted from lichens. this paper is used as an acid-base indicator. which of these common household substances would turn blue litmus paper red? a) bleach b) lye c) soap d) vinegar
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The number at the end of an isotope’s name is the number.
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16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.
Answers: 2
Which of the following is true about extinction? A. Only one extinction has occurred during the Eart...
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