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Marta_Voda [28]
3 years ago
9

The number of joules required to heat one gram of a substance one degree Celsius is _____.

Chemistry
1 answer:
julia-pushkina [17]3 years ago
8 0
The answer is D - specific heat capacity.
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A student performs three trials of a titration of an acid with an unknown concentration. She compares her measured concentration
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There are many errors possible while titrating the acid of an unknown concentration with a base like NaOH.

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How are electrons excited in element?
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When the energy is provided to the atom the electrons by absorbing the energy jump to the higher energy levels. This process is called excitation. The amount of energy absorbed by the electron is exactly equal to the energy difference of orbits.  For example if electron jumped from K to L it must absorbed the energy which is equal the energy difference of these two level. The excited electron thus move back to lower energy level which is K by releasing the energy.

De-excitation:

When the excited electron fall back to the lower energy levels the energy is released in the form of radiations. this energy is exactly equal to the energy difference between the orbits. The characteristics bright colors are due to the these emitted radiations. These emitted radiations can be seen if they are fall in the visible region of spectrum.

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