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Mrrafil [7]
3 years ago
10

Adrian is measuring the time it takes to heat 200 mL of water until it boils. He is doing the experiment for the third time. He

predicts that it will take six minutes for the water to start to boil.
This is a good prediction if
A.
he heats twice as much water for the third test.

B.
recess begins in six minutes.

C.
it took nine minutes for his neighbor's water to boil.

D.
it took six minutes for the water to boil the first two times.
Chemistry
1 answer:
faltersainse [42]3 years ago
6 0

Answer:

I think a

explanation

..

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How many different bases of DNA​
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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

brainly.com/question/1932868

#SPJ4

4 0
1 year ago
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