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kirill115 [55]
3 years ago
9

What electromagnetic wave can cause skin cancer?

Chemistry
2 answers:
TiliK225 [7]3 years ago
6 0

UV radiation is dangerous and can cause skin cancer because of it’s high frequency, which can penetrate the skin. Too much of it can be fatal. Therefore the answer is ultraviolet radiation.

Monica [59]3 years ago
4 0

Answer:  Ultraviolet Radiation

Explanation:  Ultraviolet Radiation is the kind of electromagnetic radiation having wavelength in the range of 10 nm to 400 nm. It is shorter than the visible light.

The prime and major source of these radiations is the Sun. These radiations have some advantages as well as these are used for the security purposes but these advantages are negated with the impact they have on living beings.

These radiations attacks directly the DNA of the cells of the skin and can cause fatal and an incurable disease like cancer.

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How many moles are in 4.5 g of<br> Sodium Chloride, NaCl?
Sergeu [11.5K]

Answer:

The answer to the question is 0.07 moles

6 0
2 years ago
Is there a qualitative difference between the enthalpy of a phase transition versus the enthalpy of a heating or cooling process
Vesna [10]

Answer:

No

Explanation:

given that, enthalpy is a state function, that means it depends only on the initial and final states,  there is no difference between the enthalpy of a phase transition versus the enthalpy of a heating or cooling process, when the cooling or heating process finish in a change of phase.

It does not  matter which way we take to cool or heat the substances the Enthalpy of this process will be the same.

3 0
3 years ago
In a certain acidic solution at 25 ∘c, [h+] is 100 times greater than [oh −]. what is the value for [oh −] for the solution? in
marishachu [46]

Answer:

1.0 x 10⁻⁸ M.

Explanation:

<em>∵ [H⁺][OH⁻] = 10⁻¹⁴. </em>

∵ [H⁺] = 100 [OH⁻].

∴ 100 [OH⁻][OH⁻] = 10⁻¹⁴.

∴ 100 [OH⁻]² = 10⁻¹⁴.

[OH⁻]² = 10⁻¹⁴/ 100 = 1.0 x 10⁻¹⁶.

<em>∴ [OH⁻] = √(1.0 x 10⁻¹⁶) = 1.0 x 10⁻⁸ M. </em>

3 0
3 years ago
Bismuth(III) sulfate is an ionic compound formed from Bi3+ and SO42-. What is the correct way to represent the formula?
Hitman42 [59]

Answer:

Bi2(SO4)3

Explanation:

Bismuth(iii) sulfate is an ionic compound therefore, their is transfer of electron. Ionic compound has both cations and anions. The cations is positively charged ion while the anions is negatively charged ions. The cations loses electron to become positively charged while the anions gains electron to become negatively charged.

From the compound above, Bismuth(iii) sulfate the cations will be Bismuth ion which loses 3 electrons. The anions is the sulfate ion (S04)2- with a -2 charge.

The chemical formula can be computed from the charge configuration as follows

Bi3+  and (SO4)2-

cross multiply the charges living the sign behind to get the chemical formula

Bi2(SO4)3

Note the final chemical formula, the numbers are sub scripted

4 0
3 years ago
Imagine you have a friend over for lunch. You decide to dissolve crackers in your soup as fast as possible. You must first incre
Gelneren [198K]

Answer:

 C. break the crackers into pieces

4 0
3 years ago
Read 2 more answers
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