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Ostrovityanka [42]
3 years ago
11

Helpe pls I will mark brainlest​

Chemistry
1 answer:
olya-2409 [2.1K]3 years ago
4 0

Answer:

What is the question needing to be answered?

Explanation:

Usually with a scientific hypothesis, you ask the question in an if, then statement. For example: If it rains outside, then the ground will be wet. It's kind of like a cause and effect statement.

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Alkanes are chains of carbon atoms surrounded by hydrogen atoms. <br><br> a. True<br> b. False
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Answer:

a. True

Explanation:

Alkanes are chains of carbon atoms surrounded by hydrogen atoms. TRUE.

Alkanes are hydrocarbons, that is, they are organic compounds formed only by carbon and hydrogen. In alkanes, carbon atoms are bonded to each other through single covalent bonds and they are also bonded to hydrogen atoms through the same type of bonds. Alkanes have the general formula CnH2n+2.

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Using the law of reflection—the angle of reflection equals the angle of incidence—we can see that the image and object are the same distance from the mirror. This is a virtual image, since it cannot be projected—the rays only appear to originate from a common point behind the mirror.

Explanation:

Hope this helps someone

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2 years ago
1. How do metals and non-metals react with acids? Write and explain the chemical equation for the reaction of magnesium with sul
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Answer:

1. How do metals and non-metals react with acids?

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Magnesium + sulphuric acid = Hydrogen + salt

Mg(s) + H2SO4 (aq) MgSO 4(aq) +H2 (g)

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2Al(s)+6HCl(aq)→2AlCl3(aq)+3H2(g)

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Explanation:

[Rn] 7s25f6d4

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