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sasho [114]
2 years ago
6

1. A sample of oxygen gas has a volume of 150 ml when its pressure is 440 mmHg. If the pressure is

Chemistry
1 answer:
Debora [2.8K]2 years ago
7 0

Answer:86.84

Explanation:

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How many neutrons are there in 9 molecules of P4 with mass number 31 and proton number 15?
aalyn [17]

A = mass number which is equal to the total number of protons + number of neutrons, Z= atomic number of any element which is also indicates Number of protons or number of electron in the given atom.


The formula to calculate neutron would be :

mass number - proton  

31   - 15     = 16

Thus 16 neutrons are found in one atom of P  

There are 4 atom in one molecule

Thus  

4 atom /1 molecule * 9 molecule * 16 neutron / 1 atom  

= 4*9*16= 576 neutrons


7 0
3 years ago
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cupoosta [38]

its 40

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3 years ago
How many mmHg are there in 5atm
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There is 3800 mmHg in 5 atm
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3 years ago
Predict the product for this reaction.
harina [27]

Answer:

The answer is = LiCl ..............

4 0
2 years ago
Justin mixed two clear liquids together during an experiment and made the following observations: The mixed liquids decreased in
kvasek [131]

Answer:

B

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A chemical change occurred, and this caused the liquid’s physical properties to change.

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