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
vovangra [49]
3 years ago
12

in a given chemical reaction the energy of the products is greater than the energy of the reactants this is because

Physics
1 answer:
pashok25 [27]3 years ago
7 0
<span> A reaction in which energy is absorbed from the surroundings is called an endothermic reaction. In endothermic reactions the enthalpy of the products is greater than the enthalpy of the reactants. Exothermic reactions heat up their surroundings while endothermic reactions cool them down.
I hope this helps you </span>
You might be interested in
What is the action force and the reaction force when you sit down on a chair
Harlamova29_29 [7]
Your weight pushing down on the chair is the action force. The reaction force is the force exerted by the chair that pushes up on your body.
3 0
3 years ago
Read 2 more answers
How much work is done if a force of 20N is used to move an object 6 metres? <br><br> pls help
Dmitriy789 [7]

I assume that the force of 20 N is applied along the direction of motion and was applied for the whole 6 meters, the formula of work is this; Work = force * distance * cosθ where θ is zero degrees. Plugging in the data to the formula; Work = 20 N * 6 m * cos 0º.

Work = 20 N * 6 m * 1

Work = 120 Nm

Work = 120 joules

Hope this helps!

8 0
3 years ago
Read 2 more answers
Four point charges of magnitudes +3q, -q, +2q, and -4q are arranged in the corners of a square of side length L. The charge -q c
mafiozo [28]

Answer:

d) 0 V

Explanation:

It can be showed that the potential due to a point charge q, to a distance d from the charge, can be expressed as follows:

V = \frac{k*q}{r}

where k = \frac{1}{4*\pi*\epsilon0} = 9e9 N*m2/C2

As the potential is an scalar, and is linear with the charge, we can apply the superposition principle, which means that we can find the potential due to one of the charges, as if the other were not present.

By symmetry, all four charges are at the same distance from the center, so we can write the total potential, as follows:

V = \frac{k}{d} ( q1 + q2 + q3 + q4) (1)

where d, is the semi-diagonal of the square, that we can find applying Pythagorean theorem, as follows:

d = \sqrt{\frac{L^{2}}{4} + \frac{L^{2}}{4} } = L*\frac{\sqrt{2}}{2}

Replacing by the values in (1) we have:

V = \frac{9e9N*m2/C2}{\frac{L}{2}*\sqrt{2} }* ( +3q -q + 2q + -4q)  = 0 V

which is equal to the option d).

6 0
4 years ago
True or False: If the initial speed of an object is zero, then the initial position of the object must be the origin. Explain
lions [1.4K]

Answer:

False

Explanation:

It is not necessary, that when the initial speed of the object is zero then it must be at origin.

It may be the object starts motion from the left of origin.

4 0
3 years ago
Ice melts in your<br> glass of water. What method of heat transfer causes this?
rosijanka [135]
The answer would be Convection.
6 0
3 years ago
Other questions:
  • 22) The sensory cells associated with the deep layers of the epidermis are
    7·1 answer
  • N2O is the chemical formula of a covalent compound used in the production of whipping cream. The elements that make up this comp
    8·2 answers
  • When do cells use oxygen to release energy
    11·1 answer
  • Plz help
    7·1 answer
  • Which statements about Earth’s atmosphere are correct? Check all that apply. helpppp
    14·2 answers
  • A hypodermic needle consists of a plunger of circular cross-section that slides inside a hollow cylindrical syringe. when the pl
    6·1 answer
  • A 0.046 kg golf ball hit by a driver can accelerate from rest to 67 m/s in 1 ms while the driver is in contact with the ball. Ho
    12·1 answer
  • During an experiment, an object is placed on a disk that rotates about an axle through its center, as shown in Figure 1. The dis
    12·1 answer
  • an object with a mass of 2.4 kg has a force of 12.6 N applied to it. What is the resulting acceleration of the object? WITH PROO
    14·1 answer
  • A glass bottle of soda is sealed with a screw cap. The absolute pressure of the carbon dioxide inside the bottle is 1.50 x 105 P
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!