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r-ruslan [8.4K]
3 years ago
15

HELP ME PLEASE I ONLY HAVE 14 MINUTES LEFT

Chemistry
1 answer:
Yanka [14]3 years ago
5 0

Answer:

B po sagot dyan nasagutan ko na yan

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If you collect 1.75 L of hydrogen gas during a lab experiment when the room temperature is 23oC and the barometric pressure is 1
ziro4ka [17]

Answer:

n=0.0747mol

Explanation:

Hello,

In this case, since we can consider hydrogen gas as an ideal gas, we check the volume-pressure-temperature-mole relationship by using the ideal gas equation:

PV=nRT

Whereas we are asked to compute the moles given the temperature in Kelvins, thr pressure in atm and volume in L as shown below:

n=\frac{105kPa*\frac{0.009869atm}{1kPa}*1.75L}{0.082\frac{atm*L}{mol*K}*(23+273.15)K} \\\\n=0.0747mol

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8 0
3 years ago
PLEASEEE HELPPPP ASAP!!
Goshia [24]

Atoms are made up of three subatomic particles called protons, neutrons, and electrons.

Protons and neutrons are located in the nucleus.

All protons have a positive charge.

All neutrons have no charge or are neutral.

Electrons orbit around the nucleus and have a negative charge.

8 0
3 years ago
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Evaluate the method of separation to be used.<br>1. Stones and rice (for cooking)​
zheka24 [161]

Answer:

hand picking

Explanation:

as stone is bigger in size we can see them with our eyes so we can handpick it

8 0
2 years ago
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KiRa [710]

answer a) the existence of isomers is a reason for the large number of carbon compounds

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3 years ago
A change in which property of light will have no effect on whether or not the photoelectric effect occurs?
Ksju [112]

Answer:

Intensity

Explanation:

The correct answer is -Intensity

Reason -

Intensity has no affect on whether or not the photoelectric effect occurs.

As frequency , wavelength are inversely proportional.

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3 years ago
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