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kiruha [24]
2 years ago
5

Help me pls omg , im stuck

Chemistry
1 answer:
eimsori [14]2 years ago
8 0

Answer:

b

Explanation:

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In the reaction
NemiM [27]

Answer:

3 moles of CO are needed

Explanation:

Given data:

Number of moles of CO used = ?

Mass of Fe produced = 112 g

Solution:

Chemical equation:

Fe₂O₃ + 3CO      →        2Fe + 3CO₂

Number of moles of Fe:

Number of moles = mass/ molar mass

Number of moles = 112 g/ 55.85 g/mol

Number of moles = 2.00 mol

Now we will compare the moles of iron and CO.

                   Fe        :         CO

                   2          :         3

Thus, 3 moles of CO are needed.

6 0
2 years ago
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Flauer [41]
Greenhouse gas is your answer it is causing the greenhouse effect of trapping heat in the earth
3 0
2 years ago
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Most atoms form compounds by forming octets in their outer shell. what does octet really mean?
Aleksandr [31]
 <span>The </span>octet rule<span> is a chemical </span>rule<span> of thumb that reflects observation that atoms of main-group elements tend to combine in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.

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7 0
3 years ago
How consumers affect which goods and services are produced.
oksano4ka [1.4K]
Consumers affect the goods and services produced through:

- The more we buy something the more popular it is and the more of it is made

- The products that is less popular and less made are because we don't buy them

- When we buy more of something the more expensive the product or service will be

- When we buy less of something the more cheaper that product or service will be

Please vote my answer branliest! Thanks.

6 0
3 years ago
I WILL DIE I HAVE A KNIFE IN MY HAND. ANSWER WITH EXPLANATION. If the sound is high pitched, then the wave's frequency would hav
enyata [817]

Answer:

Option A - High frequency, short wavelength.

Explanation:

<em>If the sound is high then the frequency is also high but short-wavelength means lots of waves that always have a high pitch-sound and a high frequency. </em>

3 0
3 years ago
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