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
Vinvika [58]
3 years ago
8

During an endothermic reaction, heat is

Chemistry
2 answers:
BARSIC [14]3 years ago
3 0

Answer:

Absorbed during the above reaction.

Explanation:

It is lowering the temperature of the reaction mixture, and thus the reaction flask feels cold.

IRINA_888 [86]3 years ago
3 0

Answer:

Endothermic reaction: absorbs heat from its surroundings.

Explanation:

"Endo" means inside.  "Thermic" refers to heat.

You might be interested in
Enter the chemical formula of a binary molecular compound of hydrogen and a Group 6A element that can reasonably be expected to
Ber [7]

Answer:

H₂Se

Explanation:

A way of estimating the acidity of a weak acid is by analizing the<em> stability of the formed anion</em>. In this case, we should find a Group 6A element that in its anionic forms (HX⁻ and X⁻²) is more stable than HS⁻ and S⁻², thus it would be more acidic in aqueous solution.

The anionic forms of Se are more stable than the forms of S, similarly to how Br⁻ is more stable than Cl⁻.

8 0
3 years ago
Na + O2 → Na2O2<br> Can you guys help me !
vfiekz [6]

Answer:

Explanation:

Assuming that you are asking for the full-balanced equations...

2Na + O2 = Na2O2

H2 + O2 = H2O2; This equation is already balanced, there is no need for change.  

Please let me know if this is not the answer you are looking for and I will amend the answer.

6 0
3 years ago
¿ cómo distinguirían el agua con el aceite?
Nastasia [14]

Answer:

Se pueden separar dos líquidos inmiscibles, aceite y agua, mediante el uso de un embudo de separación. La mezcla de aceite y agua forma dos capas separadas porque son completamente insolubles entre sí. El aceite forma la capa superior mientras que el agua forma la inferior.

Explanation:

Espero que esto ayude a marcar el MÁS CEREBRAL !!!

7 0
3 years ago
The process that is the opposite of sublimation is called deposition. Use the example of frost formation to infer why this proce
Vedmedyk [2.9K]

Answer:

See explanation

Explanation:

Sublimation refers to the movement of molecules directly from solid into the vapor or gas phase while deposition refers to the movement of  molecules directly from the gas phase into the solid phase. The two are opposite to each other.

Frost is formed in a situation where a substance cools to a temperature that is lower than its dew point. In this situation, the vapour is directly deposited on a surface to form a frost without passing through a liquid phase. Hence the name, deposition.

7 0
3 years ago
Which elements are necessary to accomplish work?
Y_Kistochka [10]
Force , cause , and displacement .
8 0
3 years ago
Other questions:
  • If 72.1 mL of 0.543 M H2SO4 completely titrates 39.0 mL of KOH solution, what is the molarity of the KOH solution? a. 0.317 M b.
    15·1 answer
  • A 74.0-gram piece of metal at 94.0 °C is placed in 120.0 g of water in a calorimeter at 26.5 °C. The final temperature in the ca
    12·1 answer
  • . What is the acceleration of a 25.05 kg mass being pushed by a 10.0 N force? What is the acceleration of a 24.00 kg mass pushed
    7·1 answer
  • As a science major, you are assigned to the "Atomic Dorm" at college. The first floor has one suite with one bedroom that has a
    10·1 answer
  • Which particles make up to the nucleus of an atmon?
    5·1 answer
  • The volume of a gas is doubled while the temperature is held constant. How does the gas pressure change
    12·2 answers
  • What kind of atoms An attachment
    13·1 answer
  • explain observation made when anhydrous calcium chloride and anhydrous copper (ii) sulphate are separately exposed to the atmosp
    10·1 answer
  • explain why temperature is not as hot during the summer when a city is on a body of water (for example San Diego vs. Imperial Va
    5·1 answer
  • The temperature of a plastic cup is 70ºF. It is filled with water that is 40ºF. Which of the following describes how thermal ene
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!