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Find the mass in grams of 150.0L of helium gas (assume standard pressure and temp.)
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An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
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Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons
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What term describes technology that operates on an atomic level
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Chemistry, 22.06.2019 15:30
The identities of substances are the same before and after which type of change
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Find the mass in grams of 150.0L of helium gas (assume standard pressure and temp.)...
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