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jolli1 [7]
2 years ago
11

If a reaction is exothermic, what is true of its reverse reaction?

Chemistry
1 answer:
Allushta [10]2 years ago
3 0

Answer:

the forward reaction will have a lower activation energy than the reverse reaction.

Explanation:

hope this helps

i am so sorry if this is the wrong answer

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The isotope of an atom containing 31 protons and 39 neutrons suddenly has two neutrons added to it.
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Answer:

Gallium-72

Explanation:

The elements are identified by the number of protons of the atom, which is its atomic number.

In this case the number of protons 39 (atomic number 39) permit you to identify the element as gallium.

Now, to identify the isotope you tell the name of the element and add the mass number.

The mass number is the sum of the protons and the neutrons

In this case, the number of neutrons is the original 39 plus the 2 added suddenly, i.e. 39 + 2 = 41, so the mass number is 31 + 41 = 72

Therefore, the isotope is gallium - 72.

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How many moles of Na are needed to produce moles of NaCl in the reaction below
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