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Use the equation to answer the question. 21H+ 21H→ 42H+energy Which statement best describes the mass numbers of the atoms in the reaction? (1 point) Responses There are two atoms with mass numbers of 2. There are two atoms with mass numbers of 2. There are two atoms with mass numbers of 1. There are two atoms with mass numbers of 1. There is one atom with a mass number of 2. There is one atom with a mass number of 2. There is one atom with a mass number of 1.

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There are two atoms with mass numbers of 1.
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