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
Cloud [144]
3 years ago
11

When an oxygen atom forms an ion, it gains two electrons. Identify the electrical charge of the oxygen ion.

Chemistry
2 answers:
mel-nik [20]3 years ago
5 0
"-2" is the electric charge of the oxygen ion among the following choices given in the question. It actually needs two electrons to complete the stable outer shell. The correct option among all the options that are given in the question is the third option or option "C". I hope that the answer has helped you.
serg [7]3 years ago
5 0

-2 is the answer I believe

You might be interested in
In a combustion experiment, it was found that 12.096 g of hydrogen molecules combined with 96.000 g of oxygen molecules to form
Mkey [24]
The mass change, or the mass defect, can be calculated by the formula that is very known to be associated with Albert Einstein. 

E = Δmc²
where
E is the energy gained or released during the reaction
c is the speed of light equal to 3×10⁸ m/s
Δm is the mass change

(1.715×10³ kJ)(1,000 J/1 kJ) = Δm(3×10⁸ m/s)²
Δm = 1.91×10⁻¹¹ kg
5 0
3 years ago
PLS HALP ASAP points
marishachu [46]

Answer:

50 N ( left)

Explanation:

Given data:

The force on right side = 450 N

The force on left side = 500 N

Net force = ?

Solution:

F (net) = 500 N - 450 N

F (net) =  50 N ( left)

5 0
2 years ago
Help PLEASE HELP PLEASE
Gennadij [26K]

Answer:

b. k+

Explanation:

4 0
3 years ago
Yes thank you I love and appreciate this so much woooo
Natali5045456 [20]
Thank you for the points

Hope you have a great day/night
4 0
3 years ago
Read 2 more answers
If the products of a certain reaction are favored (i.e., the ΔG value of the reaction is negative), one would expect a significa
Over [174]

Answer:

positive H and negative S

Explanation:

For a reaction to be spontaneous, the absolute best combination is a negative Delta H and a positive Delta S. When they are both positive, the reaction is only spontaneous at higher temperatures. When they are both negative, the reaction is only spontaneous at lower temperatures. and again if a catalyst is added to the reaction, the activation energy is lowered because a lower-energy transition state is formed. The catalyst does not affect the energy of the reactants or products (and thus does not affect ΔG).

So from these discussions

Ea does not affect G value at all (whether +Ea or -Ea).

And for product to be formed the reaction should be spontaneous, where H is negative and S positive else the reaction will yield low product.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Why do scientist need government fundings?
    9·2 answers
  • The vapor pressure of ethanol is 30°C at 98.5 mmHg and the heat of vaporization is 39.3 kJ/mol. Determine the normal boiling poi
    8·1 answer
  • Calcium fluoride (CaF2) has a solubility constant of 3.45 x 10-11
    9·1 answer
  • What is the mass of glyphosate
    11·1 answer
  • Which scientists is creadited with deveploving the first sciencefic atomic theory
    11·1 answer
  • CaF2 + (NH4)2O --> 2 NH4F + CaO How many grams of NH4F can be formed from 34.6 grams of CaF2? (AKS 4f)
    15·1 answer
  • Use Coulomb's Law to explain why and how atomic radius and IE have an inverse relationship.
    10·1 answer
  • How many grams of NaCl can be dissolved in 100 grams of water at 70°C? What is its concentration? (20 pts.)
    5·2 answers
  • Find the distance travelled by a train travelling at 140 km/h for 6 hours
    11·1 answer
  • 2. Use the graph below to answer the following questions.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!