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expeople1 [14]
3 years ago
10

7. The periodic table used today is arranged by increasing *

Chemistry
1 answer:
77julia77 [94]3 years ago
3 0
#7 is c) atomic numbers and number 8 is 15 neutrons
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What subatomic particle of the atom has no electric charge
amm1812
Neutrons have no electrical charge.
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3 years ago
How many moles of oxygen are present in 33.6l of the gas at 1atm and 0c
andreev551 [17]

The answer is: 1.5 moles of oxygen are present.

V(O₂) = 33.6 L; volume of oxygen.

p(O₂) = 1.0 atm; pressure of oxygen.

T = 0°C; temperature.

Vm = 22.4 L/mol; molar volume at STP (Standard Temperature and Pressure).

At STP one mole of gas occupies 22.4 liters of volume.

n(O₂) = V(O₂) ÷ Vm.

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n(O₂) = 1.50 mol; amount of oxygen.

5 0
4 years ago
True or false: Halogens are very stable because they have a full outer shell of 8
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Answer:

True

Explanation:

Halogens are very stable because they have a full outer shell of 8

true or false?

Brainiest plz and hope this answer helped let me know if you need any more help I am glad to help!

It's true!

8 0
3 years ago
What is an isotope ? And how do we use it ?
Sergeu [11.5K]
Somewhat of the same element, have same amount of protons but different number of neutrons. <span />
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