3 years ago

5 pois

1 answer:

6 0

The remaining 90% transforms into Hydrogen and Oxygen. The remaining 90% is recombined to maker larger molecules. I think

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A 38.8 gram piece of metal absorbs 181J as it temperature increases from 25.0 degree celsius to 36.0 degree celsius. What is the

sashaice [31]

Answer: 0.424 J/g°C

Explanation:

For this problem, we would have to manipulate the equaiton for heat, q=mCT. Specific heat is the C in the equation. Since we are looking for specific heat, we manipulate the equation so that it says C=.

$C=\frac{q}{m(deltaT)}$

*I didn't know how to type in delta so I just wrote the word delta, but pretend you see a Δ.

Now that we have our equation, we can plug in our values and solve.

$C=\frac{181J}{(38.8g)(36-25°C)}$

*Please ignore the capital A in the equation. It pops up every time I type in the ° sign.

$C=0.424J/g°C$

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4 years ago

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Sound waves are
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3 years ago

A mixture of 0.220 moles rn, 0.350 moles o2 and 0.640 moles ar has a total pressure of 2.95 atm. what is the pressure of o2? a m

EastWind [94]

Answer:

0.85 atm

Explanation:

We start by getting the total number of moles of all gases.

Total moles = 0.220 + 0.350 + 0.640 = 1.21 mol

Then we get the fraction of Oxygen moles and multiply by the total pressure;

The pressure of O2 = 0.350 mol / 1.21 mol x 2.95 atm

= 0.85 atm

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Luda [366]

1.0 x 10^-3 x 65.38 = 0.0654 g Zn

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When the volume and number of particles of a gas are constant which of the following is also constant

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The product of the pressure and volume.

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