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Leni [432]
3 years ago
6

Which of the following energy sources obtains its energy from gravitational potential energy?

Chemistry
1 answer:
ipn [44]3 years ago
6 0
It is a geothermal power plant
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When N2(g) reacts with H2(g) to form NH3(g), 92.2 kJ of energy are evolved for each mole of N2(g) that reacts. Write a balanced
Naddika [18.5K]

Answer:

N₂ + 3H₂ → 2NH₃   ΔH = - 92.2KJ

Explanation:

Let's write out the chemical equation between Nitrogen and Hydrogen to Form Ammonia.

Nitrogen + Hydrogen = Ammonia

N₂ + H₂ → NH₃

A Thermochemical Equation is a balanced stoichiometric chemical equation that includes the enthalpy change, ΔH.

The balanced stoichiometric chemical equation is given as;

N₂ + 3H₂ → 2NH₃

92.2 kJ of energy are evolved for each mole of N2(g) that reacts. And from the equation, 1 mole of N2 reacts.

The enthalpy change, ΔH = - 92.2KJ. The negative sign is because heat is being evolved.

The balanced thermochemical equation;

N₂ + 3H₂ → 2NH₃   ΔH = - 92.2KJ

6 0
3 years ago
What is the molecular weight of magnesium chloride?​
valentinak56 [21]

Answer:

Magnesium chloride/Molar mass

95.211 g/mol

Explanation:

6 0
2 years ago
Burning of paper is chemical change why? write with reaction. ​
Jet001 [13]

Answer:

Burning of paper is not a physical change.It is chemical change as ash is formed in the process which is new compound and oxides of carbon are also released during the process!

4 0
3 years ago
With the kinetic energy of a sample increases the____ will also increase
klemol [59]

Answer:

Its Temperature.

Explanation:

  • Kinetic energy is the energy possessed by a body while in motion. Potential energy on the other hand is the energy possessed by a body based on its position.
  • Kinetic energy of a body is determined by the equation; K.E = 3RT/2;
  • From the equation, kinetic energy is directly proportional to the temperature of the system and therefore an increase in the kinetic energy of a sample causes an increase in temperature of the system.
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2 years ago
What structure do all of these elements have in common?
Dmitrij [34]
The answer is c because of going left to right
7 0
3 years ago
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