5. which of the following is a chemical reaction?
a iron rusts
b. water freezes
c. s...
Chemistry, 10.12.2019 05:31 aletadaboss
5. which of the following is a chemical reaction?
a iron rusts
b. water freezes
c. sugar dissolves in water.
d. salt and pepper are mixed in a dish.
6. abby is trying to identify different liquids based on their physical properties. she has 4
Answers: 2
Chemistry, 22.06.2019 04:30
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
Chemistry, 23.06.2019 01:30
Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.
Answers: 1
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What causes the appearance of lines in a emission spectrum
Answers: 1
Chemistry, 23.06.2019 03:10
Which is true according to the law of conservation of energy
Answers: 1
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