The most dangerous form of skin cancer which is often caused by over exposure to ultraviolet radiation is what?

1 answer:

8 0

UV exposure that leads to sunburn is proven in developing melanoma, the most dangerous of the three most common types of skin cancer.

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What is the percent by mass of oxygen in carbon dioxide

san4es73 [151]

C = 12
O2 = 16*2= 32
CO2 = (12)+(16*2) = 44

32/44*100 = 72.73%

6 0

3 years ago

Why does green light slow down more than orange light does

patriot [66]

Answer:

Green light has longer wavelengths than orange light. Green light has fewer particles than orange light. Green light refracts less than orange light. That is why Green light slows down more quickly than orange light does.

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3 years ago

Chemical reaction of attraction<br> And fate is?

shepuryov [24]

Some chemical heat highly temperature it was produce poison gas

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4 years ago

How does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed?

ki77a [65]

Answer:

B. The value of q is positive

Explanation:

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3 years ago

Draw the product of nucleophilic substitution with each neutral nucleophile. When the initial substitution product can lose a pr

Margaret [11]

Answer:

Neutral nucleophile are: H2O, CH3OH, NH3, RNH2, R2NH, R3N, RCOOH, RSH and PR3. The products by nucleophilic substitution are diverse depending on the different nucleophiles, obtaining alcohol, eter, amines, ester and tioeter considering only the nucleophiles with a hydrogen available.

Explanation:

Please see the images attached.

Nucleophilic subtitution with water occurs under Sn1 mechanism. That's it because water as nucleophile is so weak. With the other neutral nucleophiles, the reaction occur under Sn2 mechanism.

RSH + CH3I -----> RSCH3 + HI

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3 years ago