Chemistry, 04.08.2019 02:50 22nathanieltimms

What is thd different between a waxing crescent and a waning crescent moon?

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Chemistry, 21.06.2019 22:00, dpazmembreno

Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.

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Chemistry, 22.06.2019 00:00, brookemcelhaney

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating

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Chemistry, 22.06.2019 20:00, montimcdaniel

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?

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Chemistry, 22.06.2019 20:30, huangjianhe135

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?