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scZoUnD [109]
2 years ago
12

What is the total number of electrons in As-3?

Chemistry
1 answer:
V125BC [204]2 years ago
5 0

Answer:

Arsenic, As, has atomic number 33, which is the number of protons in the nuclei of its atoms. A neutral As atom would also have 33 electrons. The electron configuration of a neutral arsenic atom is [Ar]3d104s24p3

Explanation:

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6 0
3 years ago
Which substances corrode copper?​
DiKsa [7]
The presence of oxidizing acids; heavy-metal salts, sulfur, and ammonia; and a number of sulfur and ammonia compounds can cause corrosion to set in. Water that comes from a well is much more likely to contain these materials and put copper lines in jeopardy—but it can occur in the civic water system as well.

Copper corrodes at insignificant rates when used in areas with unpolluted air, non-oxidizing acids, and water. However, it happens more rapidly with the presence of road salt, ammonia, sulfur, oxidizing acids

Acidic substances react with the surface of copper, causing it to tarnish and corrode almost instantly. This corrosion is highly soluble, leading to the presence of toxic copper salts in the food. This is why it is not recommended to use copper vessels for foods high in acidity, such as milk, wine, or vinegar.
4 0
2 years ago
Which element forms easily into thin sheets?<br> O carbon<br> O helium<br> O gold<br> O bromine
fenix001 [56]
The answer would be gold because gold is having a property of malleable
so it can be drawn into thin sheets
5 0
2 years ago
Read 2 more answers
How many ions are present if 2.0 moles of hno3 are completely dissolved in water?
Arte-miy333 [17]
Nitric acid(HNO3) is a strong acid so most of its component will dissociate into an ion form. When dissolved into water, nitric acid will have this reaction
HNO3= 1 H^{+} + NO3^{-} 

For every 1 mol of HNO3, there will be 1 mol of H+ ion and NO3- ion formed, which makes a total of 2 ions(degree of dissociation = 2). 
Then for 2 moles of HNO3 it would be: 2 moles * 2= 4 moles of ion
5 0
3 years ago
Read 2 more answers
Why is it important to know characteristics that matter undergoes in chemistry? How can we analyze the relationships between che
lions [1.4K]

Answer:

Chemistry is important because everything you do is chemistry! Even your body is made of chemicals. Chemical reactions occur when you breathe, eat, or just sit there reading. All matter is made of chemicals, so the importance of chemistry is that it's the study of everything.

4 0
3 years ago
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