2 years ago

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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Some oxides are given below. (i)Na2O (ii)NO2 (iii) CO2 (iv) MgO a) Which are the basic oxides among these? b) What is the name o

umka2103 [35]

<h3>Further explanation</h3>

Basic oxides ⇒ metal(usually alkali/alkaline earth) +O₂

L + O₂ ⇒ L₂O

L + O₂ ⇒ LO

Dissolve in water becomes = basic solution

L₂O+H₂O⇒ 2LOH

LO + H₂O⇒ L(OH)₂

So the basic oxides : Na₂O and MgO

Na₂O + H₂O⇒NaOH

MgO +H₂O⇒Mg(OH)₂

The aqueous solution of CO₂(dissolve in water)

CO₂ + +H₂O⇒ H₂CO₃(carbonic acid)

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2 years ago

Most carbon based molecules are classified as

kherson [118]

<span>the answer is organic molecule </span>

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2 years ago

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Zachary adds 9.7 g to 1.114 g.<br> How many significant figures should his answer have?

makvit [3.9K]

Always use least amount of sig figs possible. So this 9.7 would be (answer): 2 sig figs

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2 years ago

What is the molecular formula of the structure below?

taurus [48]

Answer:

C₆H₆

Explanation:

Each border of the figure represents 1 atom of carbon. We have 6 borders = 6 atoms of carbon.

Each atom of carbon form 4 bonds. All the carbons are doing a double bond and a single bond with other carbons. That means are bonded 3 times. The other bond (That is not represented in the figure. See the image) comes from hydrogens. As we have 6 carbons that are bonded each 1 with one hydrogen. There are six hydrogens and the molecular formula is:

This structure is: Benzene

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Calculeaza cantitatea de solutie de clorura de sodiu cu concentratia 30% necesara pentru obtinerea a 112 L de clor (c.n). Ce vol

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Answer:

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Explanation:

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2 years ago