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Ksenya-84 [330]
3 years ago
14

Anyone know how to balance these

Chemistry
1 answer:
Serhud [2]3 years ago
4 0
No, I don't believe anyone knows how to balance these!
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A calorimeter contains 280.0g of water at 13.5C. When 0.250g of a substance with a molar mass of 510.0g/mol is dissolved, the te
marin [14]

The change in heat is simply equal to:

change in heat ΔH = final enthalpy – initial enthalpy

ΔH = [280.25 g * 4.18J/gC * (17.5°C)] – [280 g * 4.18J/gC * 13.5°C]

ΔH = 4,699.89 J = 4.7 kJ

 

<span>Hence heat released is about 4.7 kJ</span>

8 0
4 years ago
A wave traveling through air meets an object and bounced off its flat surface
maks197457 [2]
It is a I’m think I’m pretty sure
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3 years ago
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Given a molecular formula, how would you calculate the molecular weight of a compound
Dominik [7]
Https://www.youtube.com/watch?v=J_MtVs0aBdU

Watch this and it will help you 
8 0
3 years ago
Fe2O3 + 2Al = 2Fe + Al2O3 is this a redox reaction
katovenus [111]

Answer:

<h3>2Al+ Fe2O3 gives 2Fe + Al2O3. The given reaction is a redox reaction. As oxidation and reduction are taking place simultaneously.</h3>

Explanation:

like this...Identify oxidation and reduction with their agents:

<h3>•2Al+ Fe2O3 →2Fe + Al2O3</h3>

<h3>•Fe2O3 is reduced to Fe whereas Al is oxidized to Al2O3</h3>

<h3>In the above reaction:</h3>

<h3>Oxidizing agent:Fe2O3</h3>

<h3>Reducing agent:Al</h3>

I hope it's help you (◠‿・)—☆

5 0
3 years ago
ATOMS WE LOVE ATOMS, answer this and get points , also thx for your help :)
LuckyWell [14K]

Answer:C because they have to I have the same mass before and after the equation.

Explanation:

HOPE THIS HELPED!! :) ;) <3<3

7 0
3 years ago
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