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pochemuha
2 years ago
6

(WRITE AT LEAST 3 COMMENTS FROM YOUR MOST REACTED POST)

Chemistry
1 answer:
quester [9]2 years ago
5 0
Karma sucide and hunger
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1. A gas has a volume of 45 L at a pressure of 140 kPa. What is the volume when
pishuonlain [190]

Answer:

The new volume of the gas is 21 L.

Explanation:

Volume of a gas is inversely proportional to its pressure at constant temperature such that,

V\propto \dfrac{1}{P}

or

P_1V_1=P_2V_2

We have,

V_1=45\ L\\\\P_1=140\ kPa \\\\P_2=300\ kPa

It is required to find V₂. Using above law or Boyle's law such that :

V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{140\times 45}{300}\\\\V_2=21\ L

So, the new volume of the gas is 21 L.

7 0
3 years ago
Write the isotope notation for the following isotope: copper-63, copper-65, magnesium-24, magnesium-25, magnesium-26, lithium-6,
andrey2020 [161]
63/29 Cu (copper-63)
65/29 Cu (copper-65)
24/12 Mg (magnesium 24)
25/12 Mg (magnesium 25)
26/12 Mg (magnesium 26)
6/3 Li (lithium 6)
7/3 Li (lithium 7)

The top number is the mass number and you find that by adding the number of neutrons and atomic number
The bottom number is the atomic number and it’s the number or protons
3 0
3 years ago
All of the following are conductors of electricity except
olga55 [171]
Rubber it's not a conductor
4 0
3 years ago
6. List two (2) ethical issues that the healthcare provider has a public duty to report.
Gennadij [26K]

Answer: Communicable diseases, abuse gunshot wounds and forensic medicine

Explanation:

3 0
2 years ago
Magnets are classified based upon how they occur either naturally or man made true or false
slega [8]

Answer:

True

Explanation:

Permanent artificial, temporary artificial and natural. They are classified by the way in which they have achieved magnetism and by how long they remain magnetic.

7 0
2 years ago
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