What causes the appearance of lines in an emission spectrum? light is absorbed as an electron moves to a higher energy state. light is released as an electron moves to a lower energy state. an electron is released as light when it moves to a lower energy state. an electron is released as light when it moves to a higher energy state.
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Chemistry, 21.06.2019 19:30, jetblackcap
The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?
Answers: 1
Chemistry, 22.06.2019 05:00, hjamya17
In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?
Answers: 1
Chemistry, 22.06.2019 17:30, llamasking
Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)
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What causes the appearance of lines in an emission spectrum? light is absorbed as an electron moves...
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