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spayn [35]
3 years ago
5

An electron has _____.

Chemistry
2 answers:
max2010maxim [7]3 years ago
8 0
An electron has a negatively charged sub atomic particles.

And you could also say that an electron has a negatively charged sub atomic particles in a cloud around the nucleus of an atom. Do what you would prefer. 
:) :)
 
vichka [17]3 years ago
5 0
Electrons have a mass of 1/1836
Hope that helps you!
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In the important industrial process for producing ammonia (the Haber Process), the overall reaction is:
irina [24]

Answer:

- 50.2 kJ

Explanation:

  • From the data given, the heat released per 2.0 moles of NH₃ is - 100.4 kJ.
  • The negative sign means that the reaction is exothermic and the energy is released.
  • <em>So, the ΔH in kJ of heat released per mole of NH₃ formed is (100.4 kJ/2) = - 50.2 kJ.</em>
4 0
3 years ago
What is conditional reflexes?? ​
SIZIF [17.4K]

Answer:

Actions that you have trained yourself to perform.

they are obtained by experience. they are not passed from generation. they can be learnt or abolished. Higher center's of brain is responsible for conditional reflexes

Explanation:

example riding a bike, swimming, typing

6 0
4 years ago
A reaction is designated as exergonic rather than endergonic when _____.
dem82 [27]

Answer:

<u>Reaction is called exergonic when ΔG is negative i.e. ΔG < 0</u>  

Explanation:

The Gibbs free energy represents the spontaneity or feasibility of a given chemical reaction at constant pressure and temperature and is given by the equation:

ΔG = ΔH - TΔS

Here, ΔG - change in the Gibbs free energy

ΔS -  change in the entropy

ΔH - change in the enthalpy

T - temperature

If the value of <u>ΔG for a chemical reaction is positive i.e. ΔG > 0</u>, then the given chemical reaction is said to be nonspontaneous. Such a reaction is called endergonic.

Whereas, if the <u>ΔG value for a chemical reaction is negative i.e. ΔG < 0</u>, then the given chemical reaction is said to be spontaneous. Such a reaction is called exergonic.

7 0
4 years ago
A substance that can be separated into two or more substances only by a chemical change is
Yuliya22 [10]
<span>A substance that can be separated into two or more substances only by a chemical change is </span><span>known as a </span><span>heterogeneous</span><span> mixture</span>
5 0
3 years ago
A student creates a ball-and-stick model to represent the atomic scale of a substance. Which of the following best describes the
laila [671]
Answer is: <span>A. 1 molecule with 10 atoms.
Every ball represent one atom in one molecule.
</span><span>The </span>ball and stick model<span> is a </span>molecular model<span> of a </span>chemical substance<span> that shows the </span>three-dimensional<span> position of the </span>atoms<span> and the </span>bonds between them. <span>The atoms have spherical shape and they are </span><span>connected with sticks (one, two or three, depends on bonds).</span>
5 0
3 years ago
Read 2 more answers
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