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dangina [55]
3 years ago
13

What is altered by a catalyst?

Chemistry
2 answers:
JulsSmile [24]3 years ago
7 0

Answer:Effect of Catalysts on the Activation Energy. Catalysts provide a new reaction pathway in which a lower Activation energy is offered. A catalyst increases the rate of a reaction by lowering the activation energy so that more reactant molecules collide with enough energy to surmount the smaller energy barrier.

Explanation:

Your answer is in this

cupoosta [38]3 years ago
7 0

Answer:

B

Explanation:

A catalyst can speed up the reaction (or make it initaite easier) by altering the activation energy.

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Oil and water placed in a jar will separate. Even when
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Answer:

B: Oil and water have a low solubility because they have separate chemical properties

Explanation:

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If a hydrogen atom has its electron in the n = 3 state, how much energy in ev is needed to ionize it?
tensa zangetsu [6.8K]

The energy of the hydrogen atom will be -0.85 ev.

Ionization, also known as ionization, would be the phenomenon by which an atom or molecule gains or loses electrons to acquire a negative and positive charge, frequently in conjunction with those other chemical changes. Ions are the name for the electrically charged molecular or atom that results.

These chemicals are known as ionic compounds, with table salt serving as an example. Ionization would be the process of removing electrons from such an element as well as a molecule as well as the dissociation of an ionic material, such as salt, itself into the individual ions in a solution like water.

The energy of hydrogen atom will be calculated by using the formula:

E_{n} = -13.6 ev / n^{2}

where, E_{n} = energy of nth level, n is the state.

It is given that, n = 3 .

Now put the value of n in above equation.

E_{4} = -13.6 ev / 4^{2}\\E_{4} = -13.6 ev  / 16\\E_{4} = -0.85 ev

Therefore, the energy of the hydrogen atom will be -0.85 ev.

To know more about energy

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The need for energy, gained by respiration and photosynthesis, is the driving force of the oxygen cycle. Please select the best
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The answer is T - true.
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spayn [35]

it would be B because warm humid air+cool land=fog

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