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3 years ago

Brainliest if CORRECT 11

Chemistry

2 answers:

Marianna [84]3 years ago

7 0

The B is the answer to the question pretty sure

Klio2033 [76]3 years ago

6 0

Answer:

Model B

Explanation:

Model A shows that light has been reflected, whereas Model B shows the light has been refracted. Light will be refracted as the light enters a more dense medium (glass), from a less dense medium (air).

This website has a really useful, thorough explanation for why this occurs:

(Check the explanation under the heading 'Explaining refraction - Higher')

https://www.bbc.co.uk/bitesize/guides/zw42ng8/revision/2

Hope this helps!

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Why is Adam Driver hot? like I want him to step on me :)

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Answer:

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3 years ago

Silicon carbide (SiC) is an important ceramic material made by reacting sand (silicon dioxide, SiO2) with powdered carbon at a h

makkiz [27]

Answer:

Percent yield of SiC is 77.0%.

Explanation:

Balanced reaction: $SiO_{2}+3C\rightarrow SiC+2CO$

Molar mass of SiC = 40.11 g/mol

Molar mass of $SiO_{2}$ = 60.08 g/mol

So, 100.0 kg of $SiO_{2}$ = $\frac{100.0\times 10^{3}}{60.08}$ moles of $SiO_{2}$ = 1664 moles of $SiO_{2}$

According to balanced equation, 1 mol of $SiO_{2}$ produces 1 mol of SiC

Therefore, 1664 moles of $SiO_{2}$ produce 1664 moles of SiC

Mass of 1664 moles of SiC = $(1664\times 40.11)g$ = 66743g = 66.74 kg (4 sig. fig.)

Percent yield of SiC = [(actual yield of SiC)/(theoretical yield of SiC)] $\times 100$ %

= $\frac{51.4kg}{66.74kg}\times 100$ %

= 77.0%

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3 years ago

What group of substances does this substance belong to?

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In comparison see it is very easy in goolge

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3 years ago

How many elements compose the majority of rock-forming minerals?

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10 elements compose the bulk of rock forming minerals

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3 years ago

PLEASE ANSWER

Otrada [13]

Answer:

The answer is D) White Light!

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3 years ago