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
sergejj [24]
3 years ago
9

Which type of energy is represented here? A. Thermal B. Chemical potential C. Mechanical D. Electromagnetic

Chemistry
2 answers:
Snezhnost [94]3 years ago
4 0
<h2>Answer:</h2>

<u>The correct answer is Thermal Energy</u>

<h2>Explanation:</h2>

Thermal energy is the energy that comes from heat. This heat is generated by the movement of tiny particles within an object. The faster these particles move, the more heat is generated. Since the matchstick produces heat energy and heat is referred o thermal energy so it is the correct answer.


Stella [2.4K]3 years ago
4 0

Answer: Option (B) is the correct answer.

Explanation:

The chemical energy stored in the bonds of a substance is known as chemical potential energy.

As potential energy is the energy obtained by the position of an object. So, in chemical bonds also energy is present at a particular position. Hence, the name chemical potential energy is given to it.

Thermal energy is defined as the internal energy of an object because of the kinetic energy present within the molecules of the object.

When sum of both potential and kinetic energy is taken together then the energy formed is known as mechanical energy.

So, in the given picture, match-stick is located at a particular position. Therefore, it has chemical potential energy.

Thus, we can conclude that chemical potential energy is represented here.

You might be interested in
The begining of this chemical equation represents the starting materials for a chemical reaction
hodyreva [135]
H2S04 is the answer to this question
4 0
2 years ago
A student measures the S2- concentration in a saturated aqueous solution of iron(II) sulfide to be 2.29×10-9 M. Based on her dat
katrin2010 [14]

Answer:

Ksp FeS = 5.2441 E-18

Explanation:

  • FeS ↔ Fe2+  + S2-

         S          S           S

∴ Ksp = [Fe2+]*[S2-].....solubility product constant

∴ [S2-] = 2.29 E-9 M = S

⇒ Ksp = (S)(S) = S²

⇒ Ksp = (2.29 E-9)²

⇒ Ksp = 5.2441 E-18

8 0
3 years ago
Chemistry question. Image attached.
Stells [14]

Answer:

The answer to your question is given below

Explanation:

The balanced equation for the reaction is given below:

CaO(s) + CH4(g) + 2H2O(g) <=> CaCO3(s) + 4H2(g)

1. Writing an expression for the equilibrium constant, K.

The equilibrium constant, K for a reaction is simply the ratio of the concentration of the products raised to their coefficient to the concentration of the reactants raised to their coefficient.

Thus, we can write the equilibrium constant, K for the reaction as follow:

CaO(s) + CH4(g) + 2H2O(g) <=> CaCO3(s) + 4H2(g)

K = [CaCO3] [H2]⁴ / [CaO] [CH4] [H2O]²

2. Based on the value of K, more products will be in the equilibrium mixture since the value of K is a positive large number.

6 0
3 years ago
Lie on a bed?<br> What type of force are you exerting when you
Alexxx [7]
Static force is being exerted
3 0
3 years ago
Geothermal energy is an alternative energy source. However, it is not resourceful enough to replace more than a minor amount of
Brums [2.3K]
A- Drilling through the Earth to reach areas is useful but expensive

6 0
4 years ago
Other questions:
  • Why doesn't oil dissolve in water? oil molecules are non–polar. oil molecules carry a net negative charge. oil molecules carry a
    8·1 answer
  • A solution which has a concentration that exceeds its predicted solubility at a certain temperature and pressure would be —
    10·2 answers
  • What is the % by mass of H2O in 10.0 g of Ba(OH)2.8H2O
    10·1 answer
  • Which of the following explains how Albert Einstein tried to influence the use of his discovery of the energy equation?
    14·1 answer
  • A sample of an unknown gas effuses in 11.2 min. an equal volume of h2 in the same apparatus at the same temperature and pressure
    13·1 answer
  • Please help. I need help with all 4
    14·1 answer
  • A sample of Oxygen effuses through a porous container about 2 times faster than an unknown gas. Estimate the molar mass of the u
    14·1 answer
  • Used to measure temperature in 8th grade science.
    14·1 answer
  • GRADE 5 SCIENCE MYA-2020-2021
    15·1 answer
  • What happens to a material when it goes through chemicle change
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!