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matrenka [14]
3 years ago
9

What hold's the nucleus together in an atom?

Chemistry
1 answer:
Simora [160]3 years ago
6 0
The nuclear force holds the nucleus together in an atom
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decomposition of hydrogen peroxide produce water and oxygen . calculate the volume of O2 formed from the decomposition of 150 mL
Ugo [173]

Explanation:

2H2O2 => 2H2O + O2

Moles of hydrogen peroxide = 0.150dm³ * (0.02mol/dm³) = 0.003mol .

Moles of oxygen = 0.0015mol.

Volume of oxygen = 0.0015mol * (22.4dm³/mol) = 0.0336dm³.

5 0
2 years ago
If the [H3O+] of a solution is 1x 10-8 mol/L the [OH-] is
Studentka2010 [4]

Answer:

<em>(H30+)= 1x10^-6 M</em>

Explanation:

Both pH and pOH have a relationship to belonging to the same aqueous solution: the expression of the Kwater (ionic product of the water Kw) is used:

1x 10-8 mol/L equals to1x10-8 M

(H3O+) x (OH-) = 1x10^-14

(H30+)x 1x 10^-8 =1x10^-14

(H30+)= 1x10^-14/1x 10^-8

<em>(H30+)= 1x10^-6 M</em>

6 0
3 years ago
What is the standard unit used to measure mass
AlladinOne [14]
The standard International System of Units (SI) unit of mass is the kilogram(kg). The kilogram is 1000 grams (g), first defined in 1795 as one cubic decimeter of water at the melting point of ice.
3 0
3 years ago
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Everyone in squidwards family has light blue skin which is dom trait for body color in hid homtonof squid vally
ArbitrLikvidat [17]
Okay what am i answering?
3 0
2 years ago
When water H2O freezes into ice some of the properties have changed but the blank of the H2O is the same.
quester [9]
I would see chemical constitution and physical components are not changed. 

Because physical reaction won't change the component itself
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3 years ago
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