Chemistry, 23.06.2021 02:40 smariedegray

Barium chloride emits a green color when flame tested. What can be said about the wavelength of light it emits?

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The complete question is as follows: Barium chloride (BaCl2) emits a green color when flame tested. What can be said about the wavelength of light it emits? Select all that apply.

A) The thermal energy is transferred to the outer electrons of the barium ions.

B) The electrons gain enough energy to excite them to a higher energy level.

C) The electrons drop back down to their ground state, gaining energy.

D) The electrons release energy emitting a wavelength of 500-560 nm, corresponding to a green light, when going back to their ground state.

The following can be said about the wavelength of light that Barium chloride emits:

The thermal energy is transferred to the outer electrons of the barium ions. The electrons gain enough energy to excite them to a higher energy level.The electrons release energy emitting a wavelength of 500-560 nm, corresponding to a green light, when going back to their ground state.

Explanation:

As barium chloride is emitting green color when flame tested. This means that thermal energy is being transferred to the outer electrons of barium ions.

A visible light is emitted by a substance when its electrons move from a region of higher energy level to lower energy level. This is because energy is given off by the electrons when they move in a lower region.

This is only possible when the electrons gain enough energy to excite them to a higher energy level.

Also, the electrons release energy emitting a wavelength of 500-560 nm, corresponding to a green light, when going back to their ground state.

Thus, we can conclude that following can be said about the wavelength of light that Barium chloride emits:

Answer from: Quest

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

Answer from: Quest

The answer is b because c don't explain why the moths are on them and it isn't a because as we know only one species of moth does this

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Barium chloride emits a green color when flame tested. What can be said about the wavelength of ligh...