What happens in nuclear fission?
A. Electrons fall to lower energy levels, emitting photons.
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What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion
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What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
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The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false
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