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ella [17]
2 years ago
12

Air trapped in a cylinder fitted with a piston occupies 145.7 mL at 1.08 atm pressure.

Chemistry
1 answer:
tigry1 [53]2 years ago
5 0
What is the new fil what is the new volume win the piston is depressed increase the pressure by 25 50
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Question 25———-A, YA are two isotopes of element A.
lakkis [162]

Answer:

Option C. 1

Explanation:

Step 1:

Determination of the Neutron of both isotopes. This is illustrated below.

For isotope y xA:

Mass number = y

Atomic number = x

Neutron =..?

Atomic number = proton number = x

Mass number = Proton + Neutron

y = x + Neutron

Rearrange

Neutron = y – x

For isotope (y + 1) xA:

Mass number = y + 1

Atomic number = x

Neutron =.?

Atomic number = proton number = x

Mass number = Proton + Neutron

y + 1 = x + Neutron

Rearrange

Neutron = y + 1 – x

Step 2:

Determination of the difference between the neutron number of both isotopes. This is illustrated below:

For isotope y xA:

Neutron number = y – x

For isotope (y + 1) xA:

Neutron number = y + 1 – x

Difference in neutron number

=> (y + 1 – x) – (y – x)

=> y + 1 – x – y + x

Rearrange

=> y – y + 1 – x + x

=> 1

Therefore, the difference in the neutron number of both isotopes is 1

6 0
3 years ago
True or false? An organism may play more than one role in a food web
almond37 [142]

FALSE

Organisms may play only one role in an ecosystem. ... Each of the organisms in an ecosystem fills the energy role of producer, consumer, or decomposer.

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3 0
3 years ago
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PLEASE HELP! It'll mean the world to me
Vikki [24]

Answer:

24 a 2.85

Explanation:

HCl is a powerful acid so it completely ioniz in water

8 0
3 years ago
Notice
mixer [17]

Answer:

gahwidsuacsgsuacayau1joagavahiq8wtw8quavakiafabajozyavqhaigavayquata

Explanation:

vahaiqgahiavavqugafayqigqvsbjsiagwyeiwvvs

3 0
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Which of the following best describes a mutation?
Vladimir [108]

Answer:

its a

Explanation:

because a mutation is a change and a change can be a mutation

8 0
1 year ago
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