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topjm [15]
2 years ago
6

What is the name of the thermodynamic barrier that must be overcome before products are formed in a spontaneous reaction?

Chemistry
1 answer:
Black_prince [1.1K]2 years ago
3 0
Activation energy is a thermodynamic barrier that must be overcome before products are formed in a reaction. It is the minimum amount of energy needed for a reaction to occur. The energy can be in the form of kinetic or potential energy. This concept was introduced by Svante Arrhenius, which brought about the Arrhenius equation which is a formula used to determine rate of reactions.  
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What is the definition of a covalent bond?
valentinak56 [21]
A covalent bond is the bond formed by the sharing of a pair of electrons by two atoms.

Your answer is D: A bond between two atoms.
8 0
3 years ago
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At a certain temperature the vapor pressure of pure heptane C7H16 is measured to be 454.mmHg. Suppose a solution is prepared by
OlgaM077 [116]

Answer:

Mass of heptane = 102g

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Molar mass of heptane = 100.21

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5 0
3 years ago
When a solution of ammonium sulfate is added to a
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Answer:

Explanation:

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3 years ago
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Dima020 [189]

Answer:

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8 0
2 years ago
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According to atomic theory:
JulsSmile [24]

Answer:

e. all of these

Explanation:

Let us check all the given options one by one:

a.The nucleus is positively charged.

Yes it is correct since nucleus contain protons and neutrons and protons are positively charged.

b.The nucleus contains both charged and uncharged particles.

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c.The electrons contribute very little to the total mass of the atom.

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e. All of these.

Since , all given options are correct .

Therefore , option e. is right .

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3 years ago
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