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Tatiana [17]
2 years ago
15

Will bromine react with sodium

Chemistry
1 answer:
denis-greek [22]2 years ago
4 0
Yes. bromine and sodium iodide can react to form sodium bromine and free iodine
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In a very violent reaction called a thermite reaction, aluminum metal reacts with iron (III) oxide to form iron metal and alumin
leva [86]
Here's the equation:
<span>Fe2 O3 + 2Al → 2Fe + Al2 O3 
</span>
Here's the question.
What mass of Al will react with 150g of Fe2 O3? 

<span>In every 2 moles Al you need 1 mole Fe2O3 </span>

<span>moles = mass / molar mass </span>
<span>moles Fe2O3 = 150 g / 159.69 g/mol </span>
<span>= 0.9393 moles </span>

<span>moles Al needed = 2 x moles Fe2O3 </span>
<span>= 2 x 0.9393 mol </span>
<span>= 1.879 moles Al needed </span>

<span>mass = molar mass x moles </span>
<span>mass Al = 26.98 g/mol x 1.879 mol </span>
<span>= 50.69 g </span>
<span>= 51 g (2 sig figs) 
</span>
So the <span>mass of Al that will react with 150g of Fe2 O3 is 51 grams.</span>
3 0
3 years ago
How do you do these?
Agata [3.3K]

Solve these problems like weighted averages:

The first one:

Multiply the masses (isotope numbers) by the decimal form of the percentage. Add them

0.076 (6) + 0.924 (7) = 6.924


The second one:

0.2 (10) + 0.8 (11) = 10.8


If you think about it, these answers make sense. 6.924 is much closer to 7 than to 6 (since there's a lot more lithium-7 than there is lithium-6). 10.8 is closer to 11 than to 10.


6 0
3 years ago
Proteins are build inside these
Furkat [3]
I think you're talking about Ribosomes?

This is the organelle responsible for protein synthesis.
6 0
3 years ago
Which substances in the diagram are most unstable? positive values of enthalpy negative values of enthalpy negative values -50 t
NemiM [27]

Answer:

no  s e

Explanation:

tampocose

8 0
3 years ago
Read 2 more answers
Solid diarsenic trioxide reacts with fluorine gas (F2) to produce liquid arsenic pentafluoride and oxygen gas (O2). Write the Qc
Flauer [41]

Answer:

QC= [O2]^3/[F2]^10

Explanation:

7 0
2 years ago
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