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ladessa [460]
3 years ago
11

When placed in H2O, a sodium pellet catches on fire as hydrogen gas is liberated and sodium hydroxide forms.

Chemistry
1 answer:
tangare [24]3 years ago
3 0
I this is really hard who can help me complete all of these because this is acknowledged
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(b) How many moles of hydrogen are needed to make 30 moles of Fe?<br><br> PLEASE HELP ASAP
iVinArrow [24]

Answer:

1 mole of Fe is 55.85 g per mole

Explanation:

hope it helps

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What is the mass of the 3.7 mol pbo2?
serious [3.7K]
239,2 g/mol x 3,7 mol = 885,04 g
5 0
3 years ago
Charles's law describes the relationship of the volume and temperature of
True [87]

Answer:

The temperature would be reduced by half

Explanation:

Charles' Law => V ∝ T =>  V = kT => k = V/T

For two sets of T vs V conditions, the system constant (k) remains unchanged and k₁ = k₂ => V₁/T₁ = V₂/T₂.

Therefore, if V₁ is reduced to 1/2V₁ = V₂ => V₁/T₁ = 1/2V₁/T₂ => V₁/T₁ = V₁/2T₂

and solving for T₂ =>  1/T₁ = 1/2T₂ => 2T₂ = T₁ => T₂ = 1/2T₁

∴ The initial temperature (T₁) would be reduced by half or, T₂ = 1/2T₁

7 0
2 years ago
What is the pressure of 2.20 mol of a gas stored in a 4.5 L container at a temperature of 170 K? (Use PV=nRT and R = 8.314 L∙kPa
algol13

Answer:

I don't know how can i do

Explanation:

please give me hint

7 0
2 years ago
What are differences and similarities between pure substances and mixtures
Snezhnost [94]

Answer:

HELLO THERE!

I HOPE MY ANSWER WILL HELP YOU :)

Explanation:

There is this picture that helped me. I hope it helps you too.

5 0
3 years ago
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