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Dafna11 [192]
3 years ago
6

What is the definition of isotope?

Chemistry
2 answers:
fomenos3 years ago
8 0
Hey!


ANSWER: each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties.

Hope this helped you out!!!
Crank3 years ago
7 0

Answer:

An isotope is basically when the element of an atom has a different number of neutrons (which is atomic mass)

Explanation:

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When electricity is produced from coal, the chemical energy in coal is first changed to thermal energy. True or False
Degger [83]

It is true. because it... umm. uhh yea

3 0
3 years ago
If a gas at 25.0 °C occupies 3.60 liters at a pressure of 1.00 atm, what will be its volume at a pressure of 2.50 atm?
Greeley [361]

Answer:

1.44 L

Explanation:

Since 25 is constant it is no use. Now, rearrange the gas formula. You should get...

P1V1/T2=P2V2T1

Next, rearrange to fit the problem. You should get...

V2=P1V1/P2

Fill in our values and solve. You should get 1.44 L

We can check this by knowing that P and V at constant T have an inverse relationship. Hence, this is correct.

- Hope that helps! Please let me know if you need further explanation.

8 0
3 years ago
How many moles of oxygen are in 1 mole of fe(no3)3?
Naddika [18.5K]
One mole of Fe(NO3)3, or iron(III) nitrate, has three moles of nitrate molecules, which have three moles of oxygen atoms each. We can show this mathematically:
1 mole Fe(NO3)3 * (3 moles NO3)/(1 mole Fe(NO3)3) = 3 moles NO3
3 moles NO3 * (3 moles Oxygen)/(1 mole NO3) = 9 moles Oxygen
9 moles of Oxygen in one mole Fe(NO3)3
8 0
3 years ago
Give an example of two elements that would form a covalent bond
Tamiku [17]

<span>Hydrogen carbon and oxygen commonly form covalent bonds.
</span>
HOPE THIS HELPS!
4 0
3 years ago
How do I solve this? please help and only respond with the answer/work. I will mark BRAINLIEST
Ulleksa [173]

Answer: I think the answer is 2.5 M.

Explanation:  Formula: M = n/v

M= 10 mol / 4L

M= 2.5 M

4 0
3 years ago
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