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
ExtremeBDS [4]
3 years ago
15

How many electrons are found in a C and O2-, respectively?

Chemistry
1 answer:
lisabon 2012 [21]3 years ago
8 0

Answer:

For example: O2- indicates an ion of oxygen having two extra electrons. I.e., since an oxygen atom normally has 8 protons and 8 electrons, this ion has 10 electrons (-10 charge) and 8 protons (+8 charge) giving it a charge of -2 (-10 + 8 = -2).

You might be interested in
A sample of 5 moles of gas is held at a constant temperature of 500 k inside a container with a volume of 0.25 l. What pressure
pshichka [43]

Answer: 41 atmosphere

Explanation:

Given that:

Volume of water V = 0.5 L

(since 1 liter = 1dm3

0.5L = 0.5dm3)

Temperature T = 500K

Pressure P = ?

Number of moles of gas = 5 moles

Note that Molar gas constant R is a constant with a value of 0.0082 ATM dm3 K-1 mol-1

Then, apply ideal gas equation

pV = nRT

p x 0.5dm3 = 5 moles x (0.0082 atm dm3 K-1 mol-1 x 500K)

p x 0.5dm3 = 20.5 atm dm3

p = (20.5 atm dm3 / 0.5dm3)

p = 41 atm

Thus, the gas is under a pressure of 41 atmosphere

5 0
3 years ago
Help me out anybody plz
docker41 [41]
Haploid number of chromosomes and gamete cells.
7 0
3 years ago
Read 2 more answers
Elements in group via (group 16) have similar properties because they all have __________.
Ksivusya [100]
They all have 2 elections in the outer S orbital, and 4 electrons in the P orbitals.
6 0
3 years ago
Read 2 more answers
The combustion of carbohydrates and the combustion of fats are both exothermic processes, yet the combustion of carbohydrates is
Julli [10]

Explanation:

There are two aspects of a reaction:

Thermodynamics:

Combustion of the compound is reaction with oxygen.

The carbohydrates contain more content of oxygen as compared to fats.

Hence, carbohydrates have lot of oxygen content which are already partially oxidized as compared to fats. Hence, combustion of the carbohydrates is a faster process.

Kinetics:

The molecular reacts also shows that the combustion of the carbohydrates is a faster process.

7 0
3 years ago
In which circumstance is displacement the same as distance traveled?
Ede4ka [16]
Distance travelled will be equal to displacement when the line drawn is completely straight. 

Hopefully, this helps.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which element's total number of electrons is equal to the number of core
    10·1 answer
  • Which statement best describes the reaction pathway graph for endothermic reactions? mainly downhill always linear always parabo
    5·2 answers
  • What is the empirical and molecular formula of caffeine
    12·1 answer
  • A cube has a mass of 100 grams and it’s density to be 1 g/cm cubed . The volume of the cube must be ?
    12·1 answer
  • Multiple answers are allowed.
    14·2 answers
  • Dominic made the table below to organize his notes about mixtures. A 1-column table. The first column labeled properties of mixt
    12·2 answers
  • Two samples of carbon come into contact. Heat will transfer from Sample A to Sample B if the average kinetic energy of Sample A'
    5·2 answers
  • An object weighing 10 grams is spinning in a centrifuge such that an acceleration of 13.0 g is imposed to it. The arm connecting
    13·1 answer
  • How many molecules are present in 3.09 mol of silicon dioxide, SiO2
    9·1 answer
  • The combustion of hydrogen gas releases 286 kJ per mol of hydrogen. If 13.0 L of hydrogen at STP was burned to produce electrici
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!