Chemistry, 20.09.2020 01:01 grettelyesenia
The atomic number tells you how many protons an atom has true of false?
Answers: 2
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What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.
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Chemistry, 23.06.2019 03:30
27 drag each label to the correct location on the image. a particular exosolar system has five planets in total: a, b, c, d, and e. the table lists the orbital periods of these planets in days. planet orbital period (days) a 600 b 80 c 1,000 d 500 e 100 move each planet to its orbit in the system.
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Chemistry, 23.06.2019 22:30
Which statement is true about this reaction? 14n+h–> 150 it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.
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Chemistry, 24.06.2019 00:00
Suppose that you stir a green powder into a clear liquid. the liquid turns green. you leave the room and come back later to observe that the top of the liquid is clear again. a green substance has settled on the bottom of the container. was the green liquid that you made a compound or a mixture? explain your reasoning.
Answers: 1
The atomic number tells you how many protons an atom has true of false?...
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