Chemistry, 29.10.2019 23:31 kitten9389
ms. roberts asked tim to put the label "compound" on the correct jar in the picture. which of the four substances is a compound?
a) chlorine
b) nitrogen
c) sodium
d) water
Answers: 3
Chemistry, 21.06.2019 15:00
Use examples from the article to explain one positive and one negative effect that chemistry has had on society
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Chemistry, 22.06.2019 02:40
The difference between the atomic number of an element and the element’s atomic mass is the number of ions.
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Chemistry, 22.06.2019 03:00
Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.
Answers: 3
Chemistry, 22.06.2019 07:00
6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space
Answers: 2
ms. roberts asked tim to put the label "compound" on the correct jar in the picture. which of the fo...
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