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melamori03 [73]
4 years ago
9

Help please the questions are confusing

Chemistry
2 answers:
Virty [35]4 years ago
7 0
It has 11 Electrons because Sodium is the normal atom, Electrons are negative, Protons are positive. If there are 11 protons there must be 11 electrons to cancel each other out
SashulF [63]4 years ago
3 0

Answer:

5- number of electrons=11

Explanation:

in a neutral atom number of protons=number of electrons which in this case=11

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2. Without energy there can be no
vlada-n [284]

Answer:

Existence

Explanation:

Energy is required for anything to occur, without it there would be no 'causality' for things to change from one moment to the next.

Hope this helped!!!

3 0
3 years ago
Read 2 more answers
In what way are atoms Of oxygen most different from atoms of nitrogen
xz_007 [3.2K]
Oxygen is diatomic and nitrogen is not
6 0
3 years ago
You dissolve NH&CN in water. Will the resulting solution be acidic or basic? You need to explain your answer using the appro
Advocard [28]

NH₄CN is a salt formed from weak base NH₄OH and weak acid HCN so that it undergoes complete hydrolysis

<h3>Further explanation</h3>

The hydrolysis process is a term used for the reaction of substances with water

There are 3 types of hydrolysis salts

1.Salt from strong acids and strong bases does not undergo hydrolysis so that the pH of the neutral solution = 7

2.Salt from strong acids and weak bases (pH <7) or from strong bases and weak acids (pH> 7) will be partially / partially hydrolyzed

3.Salt from weak acids and weak bases (pH depends on the value of Ka and Kb) will be completely hydrolyzed

NH₄CN is a salt formed from weak base NH₄OH and weak acid HCN so that it undergoes complete hydrolysis

NH₄OH + HCN⇒NH₄CN+H₂O

Can be formulated :

\tt [H^+]=\sqrt{\dfrac{Kw\times Ka}{Kb} }

Ka> Kb then [H +]> 7 and pH <7 ⇒ acidic

Ka <Kb then [H +] <7 or pH> 7 ⇒alkaline

Ka = Kb then pH = 7 ⇒neutral

3 0
3 years ago
The jaeger reading cards are used to test _____ vision
aleksley [76]
The Jaeger reading cards are used to test near vision. It's usually held by a patient at a certain distance from the eye depending on the size being read. The smallest letters one can read is what determines their visual acuity!
3 0
4 years ago
Which of the following atoms has the largest radius?<br> Mg<br> Si<br> S<br> Cl
timofeeve [1]

Answer:

Mg

Hope this helps :D sorry if im wrong :(

8 0
3 years ago
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