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
melisa1 [442]
3 years ago
5

If a reaction is exothermic, then which of the following statements is always true? If a reaction is exothermic, then which of t

he following statements is always true? The products have lower potential energy than the reactants. Energy must be added for the reaction to proceed. The products have lower entropy (are more ordered) than the reactants. It occurs extremely quickly.
Physics
1 answer:
sesenic [268]3 years ago
7 0

Explanation:

Reactants ⇒ product + heat (exothermic reaction) ....(1)

We have given that the reaction is exothermic, so the heat is rejected from the reaction. We know that heat is the form of energy.

From equation (1)

from the given equation we can see that reactants have more energy than products.

So the reactants have higher potential energy in comparison to the products.

You might be interested in
Which is a result of using a machine?
kakasveta [241]

Answer:

Yes labor is required therefor jobs like cashier, and other low skill labor jobs I'll not be required

Explanation:

4 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST
Greeley [361]

Answer:C

Explanation:BECASE THEY ARE ONE OF THE PEST KILLERS SRY BUT IM THE MYSTER MAN WHOOOSH ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? OH AND PLS FOR BRAINIEST

5 0
3 years ago
Which of the following is not a vector quantity?
baherus [9]

Answer: The answer is density

3 0
3 years ago
A Jeep accelerated at 2.2 m/s2 until after 18 seconds its displacement was 660 meters. Assuming the Jeep traveled in a straight
pogonyaev
Ok so we know:
The time (t) is 18seconds
The acceleration (a) is 2.2m/s2
The displacement (r) is 660

Using the equation
r = ut +  \frac{1}{2} a {t}^{2}
With 'u' being the initial velocity we want, we get:
660 = 18u + 356.4
So:
18u = 303.6
So:
u = 16.8666
So the original/initial velocity was 16.8666 or 16.87 m/s

Hope this helped

5 0
3 years ago
5. Put these in order from least to greatest resistance:
zloy xaker [14]
<span>superconductors, conductors, semiconductors, insulators </span>
8 0
3 years ago
Other questions:
  • A helicopter (m = 3250 kg) is cruising at a speed of 56.9 m/s atan altitude of 185 m. What is the total mechanical energy of the
    10·1 answer
  • Two 10.0-cm-diameter electrodes 0.50cm apart form a parallel-plate capacitor. The electrodes are attached by metal wires to the
    7·1 answer
  • Below are birds-eye views of six identical toy cars moving to the right at 2 m/s. Various forces act on the cars with magnitudes
    5·1 answer
  • A closed system’s internal energy changes by 178 J as a result of being heated with 658 J of energy. The energy used to do work
    11·1 answer
  • If a storm is 7.5 kilometers away, how much time is expected between observations of lightning and thunder? Round your answer to
    5·1 answer
  • A 1900kg car starts from rest and drives around a flat 65-m-diameter circular track. The forward force provided by the car's dri
    12·1 answer
  • A friend asks you how much pressure is in your car tires. You know that the tire manufacturer recommends 30 psi, but it's been a
    9·1 answer
  • Describe your experience with the largest earthquake you have left
    11·1 answer
  • The blades in a blender rotate at a rate of 6100 rpm. When the motor is turned off during operation, the blades slow to rest in
    12·1 answer
  • Explain your problem of<br>Federalism<br>​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!