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Pavlova-9 [17]
3 years ago
7

If the percent transmittance is is 64.9 in 0.2M standard CuSO4, what is the absorption?

Chemistry
1 answer:
Natali [406]3 years ago
5 0
Explain it a little more ?
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Colt1911 [192]
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1.* Write the name and symbol of the ion formed when
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Give three examples of energy being changed to other forms.
dimaraw [331]
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Hope this helps :)
6 0
4 years ago
The atomic mass of helium-4 is 4.0026 amu. How many of each
umka21 [38]

Answer:

Protons: 2.

Electrons: 2.

Neutrons: 2.

Explanation:

Hello,

In this case, since an atom's atomic number is equal to the number of electrons, considering the electron configurations, taking into account that helium-4 is neither positively nor negatively charged, we can infer that the number of electrons equal the number of protons, which in this case are 2, due to the fact that is atomic number is 2.

Moreover, as helium-4's atomic number is 4 as a whole number, we compute the number of neutrons by using the shown below equation:

Neutrons=mass\ number-atomic\ number\\\\Neutrons=4-2\\\\Neutrons=2

Regards.

7 0
3 years ago
Which will dissolve at the fastest rate?
Nezavi [6.7K]
I need help on this one too I think it might be (b)
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