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
VLD [36.1K]
3 years ago
14

How many electrons are gained in the half-reaction O2 + electrons — 202?

Chemistry
2 answers:
Likurg_2 [28]3 years ago
8 0

Answer: B. 4

Explanation:I just took it

zmey [24]3 years ago
5 0

Answer:c

Explanation:

You might be interested in
What is an ephemeral stream? A)one that flows only after rainfall B) one that flows only in flat lands C) one that is formed onl
kupik [55]

Answer: Option (a) is the correct answer.

Explanation:

The stream that flows during or after the rainfall is called an ephemeral stream. This stream occurs in areas where there is less rainfall or deficiency of moisture.

The stream that flows only in flat lands is called as river.

Mechanical weathering results in the breaking of rocks causes ice wedging.

Chemical weathering results in the change in molecular structure of rocks and soil.

Thus, it can be concluded that option (a) is the correct answer.


5 0
3 years ago
Que es la lluvia acida?​
givi [52]

Answer:

sour

Explanation:

8 0
3 years ago
Which element in Group 17 is the most active nonmetal? (1) Br (2) I (3) Cl (4) F
Maksim231197 [3]

The element of the group 17 that is most active non metal is fluorine.

The group 17 of the periodic table contains bromine(Br), iodine(I), Chlorine(Cl) and fluorine(F).

Among all the elements of the group 17. Fluorine is the smallest in size.

Because of the small size of fluorine it has the highest electronegativity in group 17.

This high electronegativity makes it a very active non metal. It provides a very high oxidizing power and low dissociation energy to the fluorine atom.

Also because of the very small size the source of attraction between the nucleus and the electrons is very high in floor in atom.

It reacts readily to form oxides and hydroxides.

So, we can conclude here that fluorine is the most active non metal of group 17.

To know more about group 17, visit,

brainly.com/question/26440054

#SPJ4

7 0
1 year ago
Hi everyone can anyone help with this, the question and diagram is in the pic thx!
seraphim [82]

Answer:

QP

Explanation:

P has 9 electrons.

Electronic Configuration : 2, 7

Valence electrons : 7

P needs 1 electron to get stable electronic configuration.

Q has 3 electrons.

Electronic Configuration : 2, 1

Valence electrons : 1

P needs to loose 1 electron to get stable electronic configuration.

Q donates 1 electron,

Q -----> Q+ + 1 e-

P gains 1 electron,

P + 1 e- -----> P-

Q+ + P- -----> QP

This is an ionic compound.

8 0
3 years ago
How many valence electrons would an element with atomic number 113 have?
marshall27 [118]

How does the law of conservation of mass apply  to this reaction: C2H4 + O2 → H2O + CO2?

4 0
3 years ago
Other questions:
  • Which product is typically made using softwood?
    14·2 answers
  • When a water molecule forms a hydrogen bond with another water molecule, which atoms are involved in the interaction? *?
    15·1 answer
  • how many grams of silver chloride (AgCI) can be produced if you start with 4.62 grams of barium chloride (BaCI2)
    9·2 answers
  • If the ka of a monoprotic weak acid is 8.4 × 10-6, what is the ph of a 0.45 m solution of this acid
    5·1 answer
  • Which of the following is the best explanation for a covalent bond?
    11·1 answer
  • Consider the hypothetical reaction 4A + 3B → C + 2D Over an interval of 3.00 s the average rate of change of the concentration o
    7·1 answer
  • Question 1 (True/False Worth 2 points)
    14·1 answer
  • Which molecule has five atoms per molecule?
    5·1 answer
  • This response to stimuli is very important in protecting the eyes because although they need light to see, too much light can ca
    15·2 answers
  • A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent composition (by mass) of the followi
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!