Chemistry, 23.07.2019 12:00 ineedtograduate2020
Covalent compounds occur a. when nonmetals share electrons b. when nonmetals gain or lose electrons c. only between metals d. between a metal and a nonmetal that share electrons
Answers: 1
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What forms when chemical reactions combine pollution with sunlight?
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How many grams of iron can be made from 16.5 grams of fe2o3
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Chemistry, 23.06.2019 07:00
Select the correct answer. why are scientific models important in the study of science? a. they always involve critical mathematical calculations. b. they scientists understand complex ideas and objects that aren’t easy to handle. c. they enable scientists to popularize their work in society. d. they are required when conducting any peer review process. e. they are necessary for turning a hypothesis into a law.
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Chemistry, 23.06.2019 08:00
Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.
Answers: 3
Covalent compounds occur a. when nonmetals share electrons b. when nonmetals gain or lose electrons...
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