Chemistry, 23.07.2019 08:20 smcardenas02
Which of the following is the best definition of pseudoscience? a. implausible or untestable scientific claims b. evidence based on personal beliefs and preferences c. hypotheses that have been disproved through scientific investigation d. evidence gathered through experience or direct observation
Answers: 2
Chemistry, 21.06.2019 14:20
Calculate the enthalpy of the following reaction: 4 b (s) + 3 o2 (g) ā 2 b2o3 (s) given the following pertinent information: (a) b2o3 (s) + 3 h2o (g) ā 3 o2 (g) + b2h6 (g), Ī“hoa = +2035 kj (b) 2 b (s) + 3 h2 (g) ā b2h6 (g), Ī“hob = +36 kj (c) h2 (g) + latex: \frac{1}{2} 1 2 o2 (g) ā h2o (l), Ī“hoc = ā285 kj (d) h2o (l) ā h2o (g), Ī“hod = +44 kj
Answers: 3
Chemistry, 22.06.2019 03:00
In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?
Answers: 3
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 āavogadroās numberā in the form we use it today (6.02 x 10 23). still, thereās a controversy over the name. research the contributions from these two scientists and read about how avogadroās number got its name. briefly state what you think this number should be called, providing key details of each scientistās contributions to this concept and a solid rationale for your case in naming the number.
Answers: 2
Chemistry, 22.06.2019 08:00
If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form
Answers: 1
Which of the following is the best definition of pseudoscience? a. implausible or untestable scient...
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