2 years ago

HELP WILL MARK BRAINIEST IF ANSWER WAS RIGHT!

Chemistry

1 answer:

Vika [28.1K]2 years ago

6 0

A gene is a part of dna that is the basic unit of inheritance.

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the white powder is added to the clear liquid. what event is occurring and is it a physical or chemical change?

alexdok [17]

I would say chemical but I’m not 100% sure might wanna get a second opinion

7 0

3 years ago

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A large flask is evacuated and weighed, filled with argon gas, and then reweighed. When reweighed, the flask is found to have ga

Elden [556K]

Answer:

100.52

Explanation:

from the ideal gas equation PV=nRT

for a given container filled with any ideal gas P and V remains constant.So T is also constant.R is as such a constant.

So n i.e no of moles will also be constant.

no of moles of Ar=3.224/40=0.0806

no of moles of unknown gas=0.0806

molecular wt of unknown gas=8.102/0.0806=100.52

8 0

3 years ago

A sample of gas has a volume of 20.0 mL at STP. What will the volume be if the temperature is changed to 546 K and the pressure

Ostrovityanka [42]

The volume did not change, it remained at 20 ml

<h3>Further explanation</h3>

Given

20 ml a sample gas at STP(273 K, 1 atm)

T₂=546 K

P₂=2 atm

Required

The volume

Solution

Combined gas Law :

$\tt \dfrac{P_1.V_1}{T_1}=\dfrac{P_2.V_2}{T_2}$

Input the value :

$\tt \dfrac{1\times 20}{273}=\dfrac{2\times V_2}{546}\\\\V_2=\dfrac{1\times 20\times 546}{273\times 2}\\\\V_2=20~ml$

The volume does not change because the pressure and temperature are increased by the same ratio as the initial conditions (to 2x)

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2 years ago

1. What temperature is equivalent to 32°F?

Vlad1618 [11]

Answer:

0 Celsius

Explanation:

its 0 degrees C

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2 years ago

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Can Neon form any compounds?

Lana71 [14]

even tho the guy copied the answer its true neon can form a compound

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3 years ago