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givi [52]
2 years ago
10

BRAINLIEST IF YOU SHOW WORK!

Chemistry
1 answer:
likoan [24]2 years ago
4 0

Answer:

3.23 atm

Explanation:

Use the equation P₁V₁=P₂V₂.  P₁ and V₁ are initial pressure and volume.  P₂ and V₂ are final pressure and volume.  Solve for P₂.

(1.88 L)(3.81 atm) = (2.22 L)(P₂)

7.1628 L*atm = (2.22 L)(P₂)

P₂ = 3.226 atm

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Answer:   seach it up

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2 years ago
Um átomo X possui 8 neutrons e seu número atômico e igual a 8. Sabendo que esse atomo é isótopos de Y, que possui número de mass
hodyreva [135]
<u>Question in English : </u>
<span>
<em>An atom X has 8 neutrons and its atomic number equals 8. Knowing that this atom is isotopes of Y, which has mass number 18, answer: What is the number of neutrons in atom Y?</em>

</span><span><u>Answer :</u>

</span>

Isotopes are defined as the atoms which have same number of protons but different number of neutrons of same element. Since the proton number is same, the atomic number also same. Hence the atomic number of Y is 8.

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                   18 = 8 + neutron number

Neutron number = 10

 

Hence, there are 10 neutrons in Y.

3 0
3 years ago
An element from the periodic table is shown below. What can you determine about the number of protons, neutrons, and electrons o
Musya8 [376]

Answer:

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The number 15.999 rounded up to 16 is the atomic weight of the atom also called the mass number.

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For every neutral atom on the periodic table, the number of protons and electrons are the same

Atomic number of oxygen = number of protons = number of electrons = 8

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4 0
3 years ago
Which of the following is NOT true of physical changes? Question 3 options: Substances change form or shape Substances remain th
dsp73

Chemical bonds are formed or broken. This is true of a chemical change, but not a physical change. A physical change is usually something that you can see, such as changing of shape or form or staying the same.  However, because you cannot visibly see chemical bonds being formed or broken and because this would affect the chemical composition, it is not a physical change.

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Hunter-Best [27]
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4 0
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