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Inessa [10]
2 years ago
5

____________ In a group all on their own. No neutrons.

Chemistry
1 answer:
tensa zangetsu [6.8K]2 years ago
6 0
These are they only ones you need? Really it looks like the whole test. Also only 5 points for all this work I’m sorry no thank you
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An atom of oxygen has atomic of 8 and a mass number of 18. How many of each type of subatomic particle doe it contain?
Tju [1.3M]
An atom of Oxygen. Contains:

Protons = 8
Electrons = 8

Neutrons = Mass number - Number of protons = 18 - 8 = 10

Neutrons = 10.
7 0
3 years ago
At a pressure of 782.3 mm Hg and 34.4 °C, a certain gas has a volume of 362.4 mL. What will
german

Answer: v2=331.289mL

Explanation:

Formula for ideal gas law is p1v1/T1=p2v2/T2

P1=782.3mmHg

P2=769mmHg at STP

V1=362.4mL

V2=?

T1=273+34.4=307.4k

T2=273k at STP

Then apply the formula and make v2 the subject of formula

V2= 782.3×362.4×273/760×307.4

V2=77397006.96/233624

V2=331.289mL

7 0
3 years ago
Convert 76.78 g of CO2 to a volume.
Jlenok [28]
Brainest please thank you
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3 years ago
What’s the answer!?!!
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Explanation:

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