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Zepler [3.9K]
3 years ago
8

1) All atoms are _____.

Chemistry
2 answers:
Katyanochek1 [597]3 years ago
6 0

All atoms are of <u>neutral charge, with an equal amount of protons and electrons.</u>

bekas [8.4K]3 years ago
4 0

Answer : The correct option is, (b) All atoms are of neutral charge, with an equal amount of protons and electrons.

Explanation :

As we know that an atom is the smallest unit of a matter that consist of three subatomic particles which are electrons, protons and neutrons.

The protons and the neutrons are located inside the nucleus or center of the nucleus where the mass of the an atom is concentrated and the electrons are located around the nucleus.

The protons are positively charged, the electrons are negatively charged and the neutrons are neutral that means it has no charge.

  • When the number of electrons are more than the number of protons then the element is negatively charged.
  • When the number of protons are more than the number of electrons then the element is positively charged.
  • When the number of electrons are equal to the number of protons then the element is neutral charged.

From this we conclude that, all the atoms are of neutral charge, with an equal amount of protons and electrons.

Hence, the correct option is (b)

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Which water source becomes polluted as it travels over the earth?
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Explanation:

Run-off are the water sources that becomes polluted as they travel over the earth surface.

Surface run-off are water that moves on the earth surface. This water is a component of the water cycle which usually originate from precipitation.

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Describe the relationship between the light-dependent and the light-independent reactions.
Slav-nsk [51]
<span>The products of the light-dependent reactions are used to help 'fuel' the light-independent reactions. 

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3 0
3 years ago
Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as
zubka84 [21]

Answer:

Explanation:

MnO₂(s) + 4 HCl(aq)  = MnCl₂(aq) + 2 H₂O(l) + Cl₂

87 g                                                                     22.4 x 10³ mL

volume of given chlorine gas at NTP or at 760 Torr and 273 K

=  175 x ( 273 + 25 ) x 715 / (273 x 760 )

= 179.71 mL

22.4 x 10³ mL of chlorine requires 87 g of MnO₂

179.4 mL of chlorine will require    87 x 179.4 / 22.4 x 10³ g

= 696.77 x 10⁻³ g

= 696.77 mg .

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Explanation:

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