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2 years ago

What electromagnetic wave can cause skin cancer?

2 answers:

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]2 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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2 years ago

Read 2 more answers

What we call "tin cans" are really iron cans coated with a thin layer of tin. The anode is a bar of tin and the cathode is the i

UNO [17]

Answer:

$Fe (s) + Sn^{2+} (aq)\rightarrow Fe^{2+} (aq) + Sn (s)$

Explanation:

Although the context is not clear, let's look at the oxidation and reduction processes that will take place in a Fe/Sn system.

The problem states that anode is a bar of thin. Anode is where the process of oxidation takes place. According to the abbreviation 'OILRIG', oxidation is loss, reduction is gain. Since oxidation occurs at anode, this is where loss of electrons takes place. That said, tin loses electrons to become tin cation:

$Sn (s)\rightarrow Sn^{2+} (aq) + 2e^-$

Similarly, iron is cathode. Cathode is where reduction takes place. Reduction is gain of electrons, this means iron cations gain electrons and produce iron metal:

$Fe^{2+} (aq) + 2e^-\rightarrow Fe (s)$

The net equation is then:

$Sn (s) + Fe^{2+} (aq)\rightarrow Fe (s) + Sn^{2+} (aq)$

However, this is not the case, as this is not a spontaneous reaction, as iron metal is more reactive than tin metal, and this is how the coating takes place. This implies that actually anode is iron and cathode is tin:

Actual anode half-equation:

$Fe (s)\rightarrow Fe^{2+} (aq) + 2e^-$

Actual cathode half-equation:

$Sn^{2+} (aq) + 2e^-\rightarrow Sn (s)$

Actual net reaction:

$Fe (s) + Sn^{2+} (aq)\rightarrow Fe^{2+} (aq) + Sn (s)$

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2 years ago