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3 years ago

Which of the three subatomic particles have a neutral charge? *

Chemistry

2 answers:

Delvig [45]3 years ago

7 0

Answer:

<h2><em>A. Neutron</em></h2>

Explanation:

Neutrons and protons are found in the nucleus of an atom. BUT unlike Protons <em>(Positive charge/ P an P is how I remember it) </em>or Electrons, which have a <em>negative charge,</em> Neutrons have zero charge which means they are neutral particles. <em>(Neutral an Neutron both start with N.)</em>

<em>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`</em>

Good luck.

<em />

kkurt [141]3 years ago

5 0

Answer:

Neutron have neutral charge

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If 6.49 mol of ethane (C2H6) undergo combustion according to the unbalanced equation

MArishka [77]

Answer:

22.715 moles of oxygen are used

Explanation:

Given data:

Number of moles of ethane = 6.49 mol

Number of moles of O₂ required = ?

Solution:

Chemical equation:

2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

Now we will compare the moles of oxygen with ethane.

C₂H₆ : O₂

2 : 7

6.49 : 7/2×6.49 = 22.715 mol

Thus, 22.715 moles of oxygen are used.

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3 years ago

The electron configuration of an element is 1s22s22p¹. How many valence electrons does the element have

Cloud [144]

Answer:

$\huge\boxed{\sf 3 \ electrons}$

Explanation:

<h3>Electronic configuration:</h3>

$1s^22s^22p^1$

The outermost/valence shell is the second one, seeing from the electronic configuration.

<h3>Valence electrons:</h3>

= 2 + 1 = 3 (electrons are raised to the power in the electronic configuration)

Since, the valence shell here is 2, the electrons of second shell will be counted as valence electrons.

$\rule[225]{225}{2}$

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2 years ago

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Answer:

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Explanation:

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