1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Airida [17]
3 years ago
15

X :1s2 2s2 2p5. X là nguyên tố gì?

Chemistry
1 answer:
In-s [12.5K]3 years ago
7 0

Answer:

Cấu hình điện tử của nguyên tố X là:

1s² 2s² 2p6 3s2 3p5

The electronic configuration of an element X is:

1s² 2s² 2p6 3s2 3p5

You might be interested in
What is the molar mass of potassium bromide, KBR?
Nezavi [6.7K]

Answer:

id.............k

Explanation:

3 0
3 years ago
Help plz ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!
ddd [48]
Honestly I don’t even know
7 0
3 years ago
When metallic aluminum is added to a solution containing iron(II) sulfate a reaction occurs. What species is being oxidized in t
REY [17]

<u>Answer:</u> Aluminium is getting oxidized in the given chemical reaction.

<u>Explanation:</u>

Oxidation reaction is defined as the chemical reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

X\rightarrow X^{n+}+ne^-

Reduction reaction is defined as the chemical reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

X^{n+}+ne^-\rightarrow X

For the given chemical reaction:

2Al(s)+3FeSO_4(aq.)\rightarrow Al_2(SO_4)_3(aq.)+3Fe(s)

The half cell reactions for the above reaction follows:

<u>Oxidation half reaction:</u>  Al\rightarrow Al^{3+}+3e^-

<u>Reduction half reaction:</u>  Fe^{2+}+2e^-\rightarrow Fe

As, aluminium is loosing 3 electrons to form aluminium cation. Thus, it is getting oxidized. Iron is gaining 2 electrons to form iron anion. Thus, it is getting reduced.

Hence, the oxidized species of the given reaction is aluminium.

4 0
3 years ago
PLEASE ANSWER I GIVE BRAINLIEST AND MAX POINTS
d1i1m1o1n [39]

Answer:

I believe the answer is A (changes in air temperature  result in differences in air pressure which causes wind). Hope this helps

Explanation:

7 0
3 years ago
which factors are needed to determine the amount of heat absorbed by an aluminum cube after it is warmed? check all that apply
Deffense [45]

Answer:

Explanation:

final temperature of the cube

initial temperature of the cube

mass of the cube

specific heat of aluminum

4 0
3 years ago
Other questions:
  • How might this local environmental change affect people living in the East Coast of the United State
    6·1 answer
  • Explain how a light ray behaves when it strikes a mirror?
    11·2 answers
  • The taste of acid is sour​
    6·2 answers
  • I really need help with this question please help me.
    11·1 answer
  • PLEASE HELP!
    15·1 answer
  • Describe the De Borglie's hypothesis​
    9·1 answer
  • Hydrogen bonding is present in all of the following molecular solids EXCEPT ____.a) H2O2 b) PH3 c) H2SO4 d) NH3
    9·2 answers
  • What is the role of an electron in an atom?
    9·1 answer
  • Suppose you are working in a chemistry lab and trying to make a solution of a substance called Sodium Chloride (which is a solid
    11·1 answer
  • Is carbon dioxide impure substance? ​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!