Chemistry, 08.10.2019 02:30 maddied2443
Scientific theories are explanations for naturally occurring events or phenomena. although scientific theories require extensive observations and experimentation, they can change over time as new evidence is discovered.
scientific laws are principles that are also based on extensive observations and experimentation. although scientific theories can develop into laws, a theory can only be declared a law if it is proven to be without exception under certain stated conditions.
which of the following is true regarding scientific theories, laws, and knowledge?
Answers: 1
Chemistry, 22.06.2019 02:00
In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al
Answers: 1
Chemistry, 22.06.2019 10:50
A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.
Answers: 3
Scientific theories are explanations for naturally occurring events or phenomena. although scientifi...
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