Which of these is an example of a physical change?
a)sugar dissolving in warm water
b)i...
Chemistry, 26.08.2019 06:30 marissalwilliams3
Which of these is an example of a physical change?
a)sugar dissolving in warm water
b)iron rusting in the presence of moist air
c)wood burning in the presence of oxygen
d)baking soda reacting with acid to form a gas
Answers: 2
Chemistry, 21.06.2019 22:30, johnnydenali67
Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know
Answers: 2
Chemistry, 22.06.2019 03:00, ian2006huang
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 04:30, akeemedwards12
Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.
Answers: 2
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