3 years ago

Someone please quickly help

Chemistry

1 answer:

Llana [10]3 years ago

5 0

How did you post this pic?

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lara [203]

It’s nervous tissue!! :)

6 0

3 years ago

Calculate the equilibrium constant expressed as log_10⁡K for CO_2⇌CO+1/2 O_2 at (a) 500K (b) 2000K and compare to the values in

Nikolay [14]

Answer:thats a good question

Explanation:

4 0

3 years ago

HELP! what's the kPa?

Rus_ich [418]

Answer:

50,662.5 kPa

Explanation:

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3 years ago

A sample of ethanol (C2H6O) has a mass of 0.2301 g. Complete combustion of this sample causes the temperature of a bomb calorime

Keith_Richards [23]

Answer: $4.994\times 10^{-3}$ moles

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to molecular mass , occupies 22.4 L at STP and contains avogadro's number $6.023\times 10^{23}$ of particles.

To calculate the moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}$

Given mass of ethanol = 0.2301

Molar mass of ethanol = 46.07 g/mol

$\text{Number of moles of ethanol}=\frac{0.2301g}{46.07g/mol}=4.994\times 10^{-3}$

Thus there are $4.994\times 10^{-3}$ moles of ethanol are present in the sample.

7 0

4 years ago

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When molecules collide with the walls of their container, is exerted

evablogger [386]

I believe your answer would be friction...

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4 years ago

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