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26.07.2020 •
Chemistry
select all the correct answers. Which conditions are required for nuclear fusion to begin? The gas cloud must be very dense. Gravitational attraction must stop. Atoms must be stripped of their electrons. Helium atoms must break down into hydrogen. Temperatures must exceed 14 million Kelvin.
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Ответ:
The gas cloud must be very dense.Temperatures must exceed 14 million Kelvin
Ответ:
There will be 2 nitrogen and 2 oxygen atoms in the product.
Explanation:
In a chemical reaction, atoms are neither created or destroyed, which means if there are 2 nitrogen atoms in the reactants, there will be 2 nitrogen atoms in the products. Similarly, if there are 2 oxygen atoms in the reactants, there will be 2 oxygen atoms in the products.
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