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Varvara68 [4.7K]
3 years ago
7

Which of the following is are the characters (s) of solid?​

Chemistry
1 answer:
iren [92.7K]3 years ago
5 0

Answer:

All of the above.

Explanation: Their particles are so close packed together.

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The internal energy of a system __________. Question 66 options: is the sum of the kinetic energy of all of its components is th
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The internal energy of a system <u>is the sum of the potential and kinetic energies of the components</u>

Explanation:

Internal energy is defined as the sum of two types of energy: kinetic energy and potential energy.

Kinetic energy is defined as the sum of all the kinetic energies that each element has within a system with respect to its center of mass. It is caused by the movement of particles. Meanwhile, the potential energy is the energy that is associated with each of the interactions. Potential energy is associated with the constituents of matter, of the electrostatic energy of each atom that is inside the molecules.

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A 31.3-g sample of ammonium carbonate contains ________ mol of ammonium ions.
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<span>We need to calculate the equivalent amount in units of moles of ammonium ions from the mass units. For this we need the molar mass of the substances involved. We calculate as follows: 

31.3 g </span>(NH4)2CO3 ( 1 mol (NH4)2CO3 / 96.09 g (NH4)2CO3) ( 2 mol NH4 / 1 mol (NH4)2CO3 ) = 0.65 mol <span>ammonium ions</span>
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a rapidly flowing river discharges into the ocean where tidal currents are weak.

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