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
Softa [21]
3 years ago
6

Which energy changes in the enthalpy of solution are endothermic, and which are exothermic?

Chemistry
1 answer:
snow_tiger [21]3 years ago
8 0
When energy is needed in order for the reaction to happen, then that reaction is known as endotermic. When the reaction has as a result energy then it is exotermic. An example of an endotermic reaction would be photosynthesis, for an exotermic: combustion.
You might be interested in
We discussed the different types of intermolecular forces in this lesson. Which type would you expect to find in CO2?
g100num [7]

Answer:

Dispersion forces.

Explanation:

CO2 contains dispersion forces, and covalent bonds. It is a linear molecule, and the bond angle of O-C-O is 180 degree. O is more electronegative than C, the C-O contains polar bond with the having negative end pointing towards the O.

CO contains two C-O bonds. They cancel each other out because of the dipoles point in opposite directions. Although, CO2 contains polar bonds, it is known as a nonpolar molecule. So, the only intramolecular forces which CO2 having are London dispersion forces.

5 0
3 years ago
Each period in the periodic table corresponds to a
Rudiy27
Each correspond to a principal energy level
4 0
3 years ago
Read 2 more answers
What is the molality of a solution made by dissolving 15.20 g of i2 in 1.33 mol of diethyl ether, (ch3ch2)2o?
Paraphin [41]
The  molarity   of solution  made  by  dissolving  15.20g  of i2  in 1.33 mol  of diethyl ether (CH3CH2)2O  is    =0.6M

   calculation

molarity  =moles of solute/  Kg of the  solvent

mole  of the solute  (i2)  =  mass /molar mass
the molar mass of i2 = 126.9 x2 = 253.8 g/mol

moles is therefore=  15.2 g/253.8 g/mol  =  0.06  moles


calculate the Kg of solvent  (CH3CH2)2O
mass =  moles  x  molar mass
molar mass  of  (CH3CH2)2O= 74 g/mol

mass  is therefore = 1.33 moles  x  74 g/mol =  98.42 grams
in Kg = 98.42 /1000 =0.09842  Kg

molarity  is therefore = 0.06/0.09842 = 0.6 M

3 0
3 years ago
What type of bonding is found in the compound of2?
Ratling [72]

Answer:

chemical bond

Explanation:

because atom can join together by forming a chemical bond

7 0
3 years ago
The _______________________________________ is often referred to as the powerhouse of the cell
almond37 [142]

Answer:

Mitochondria

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • What is amplitude?
    8·2 answers
  • A patient taking _______ would have a history of mental depression.
    10·1 answer
  • Which of the following most likely happens when the number of particles of a gas decreases?
    11·1 answer
  • Deoxyribonuleic acid stores the gene codes? true or false
    9·1 answer
  • A → B is a first order reaction. Using the data below, what is the half-life in seconds? 0 sec, [A] = 1.22 M 3 sec, [A] = 0.86 M
    15·1 answer
  • Linda takes her pet German shepherd to a dog park and sees many different breeds of dogs. What is the term for any difference be
    7·1 answer
  • There is an equal number of protons and __________ in a neutral atom.
    9·1 answer
  • What is the [H+] if pOH =9.50 <br> will it be acid or basic?
    6·1 answer
  • An empty vial weighs 55.32 g.
    9·1 answer
  • a chemical engineer has determined by measurements that there are moles of carbon in a sample of nickel tetracarbonyl. how many
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!