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
lara31 [8.8K]
3 years ago
12

Si la eficiencia de una máquina de calor es del 50% significa que ?

Chemistry
1 answer:
Karolina [17]3 years ago
8 0

Answer:

No toques el link

Explanation:

You might be interested in
4. The compound iron sulfide can be formed by
VladimirAG [237]

Answer:

heating :))))))))))))))

Explanation:

the same as the last answer i posted... sorry it just came up in my recommended questions to answer

6 0
3 years ago
What did Max Planck conclude about energy?
Reika [66]
Max Planck concluded that energy is not continuous and is carried in discontinuous units which he named quanta. 
7 0
3 years ago
Which of the following is an example of a physical change?
o-na [289]

Answer:

I think b is the correct answer

7 0
3 years ago
Read 2 more answers
Why is the number of electrons or charge of each ion useful information when predicting the products in replacement reactions?
olga nikolaevna [1]
In order to determine if the ion is positively charged or negatively charged
3 0
3 years ago
Physical Changes
Talja [164]
C. Physical changes do not change the identity of a substance, only the physical appearance such as shape or form. If you break a pencil in half, it is still composed of the same material and therefore keeps its identity as the substance it was before the physical change. Phase changes, such as ice melting, is also a physical change because it changes form. But ice is still made of H20 just like water and steam are comprised of H20.
7 0
3 years ago
Other questions:
  • The subatomic particle that has. Positive charge and is found in the nucleus an atom is
    8·1 answer
  • Assume the recommended single dose of an antihistamine for a child weighing between 18-23 lbs is 0.75 teaspoons (tsp). if 1.00 t
    7·2 answers
  • The tendency of an object to resist change in its motion
    15·2 answers
  • Suppose you were coasting on a level surface on a bicycle, and there was no friction. Ignoring air resistance, what would happen
    15·1 answer
  • An inclined plane that moves and has one or two sloping sides forms a machine called a ____.
    12·2 answers
  • A field worker is exposed to a xylene for a duration of 8 weeks at 40 hrs/wk. The concentration of xylene in the workplace is 40
    15·1 answer
  • As much sugar as will dissolve is added to hot water. The water is then
    5·1 answer
  • A particular power source releases kinetic energy that is used to move giant
    12·2 answers
  • Which wave has more energy, the wave at the transmitter or the wave at the receiver? Explain your answer.
    7·2 answers
  • How many millimeters are in 4.69 miles? Show work!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!