What happens to the reaction c2h6 + 137 kj c2h4+h2 when the temperature of the reaction is increased?
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When the number of protons and electrons are equal, that means the element is neutral. So, to know the element, find the element with an atomic number of 10. That would be Neon. Next, solve the mass number.
Mass number = protons +neutrons = 10+11 = 21
Thus, the expression should be written as shown in the attached picture.
Mass number = protons +neutrons = 10+11 = 21
Thus, the expression should be written as shown in the attached picture.