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zhenek [66]
3 years ago
13

When a material is heated, the change in temperature depends on the kind of material and its mass. Different objects can absorb

and release different amounts of energy when heated and cooled. This property is called heat capacity. How might scientists apply this property to design something useful in the real world? Give one or two examples.
ill give 50 points for this answer please help
Chemistry
1 answer:
natali 33 [55]3 years ago
8 0

Answer:

heat is absorb and cooled not absorb

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What is the magnitude of the electrostatic force between a singly charged sodium ion and an adjacent singly charged chlorine ion
Arisa [49]
To know the electrostatic force between two charges or between two ions, you can use the Coulomb's Law. The equation is F = k*q1*q1/r^2, where F is the electrostatic force, q1 and q2 are the charger for Na and Cl, and r is the distance between the centers of both atoms. In literature, the distance is 0.5 nm or 0.5 x 10^-9 meters. The charge for Na+ and Cl- is the same magnitude but different in sign. Since Na+ is a cation, its charge is +1.603x10^-19 C (the charge of an electron). For Cl- being an anion, its charge is -1.603x10^-19 C. The constant k is an empirical value equal to 9x10^9. Using the formula:

F = (9x10^9)(+1.603x10^-19)(-1.603x10^-19)/(0.5 x 10^-9)^2
F = -9.25 x 10^-10 Newtons

The negative denotes that the net force is more towards the Cl- ion.
5 0
3 years ago
Magnesium has 12 protons. What charge do you expect it to have when it ionizes? Why?
olya-2409 [2.1K]

<u>Answer:</u> This element has +2 charge on it.

<u>Explanation:</u>

An ion is formed when an atom looses or gains electrons.

  • When an atom looses electrons, it leads to the formation of positive ion known as cation.
  • When an atom gains electrons, it leads to the formation of negative ion known as anion.

Magnesium is the 12th element of the periodic table having electronic configuration of 1s^22s^22p^63s^2

This element will loose 2 electrons to attain stable electronic configuration and leads to the formation of a cation having formula Mg^{2+}

Hence, this element has +2 charge on it.

7 0
3 years ago
A solar panel combines multiple photovoltaic cells. Which type of energy is used to power a solar panel?
Softa [21]

Explanation:

<u>Photovoltaic means electricity from light</u>

photo = <em>light </em> voltaic = <em>electricity</em><em> </em>

<u>SUNLIGHT</u> is the answer

Hope this is correct

HAVE A GOOD DAY!

3 0
3 years ago
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Alik [6]

Answer:

The answer is "power dispatcher."

Explanation:

"Power dispatchers" are also known as <em>"power distributors</em>." Their field of work is related to controlling the distribution of electricity to the <em>"electrical substations." </em>These substations allow the transmission of electricity to step down from a higher voltage to a lower voltage.

Whenever there is an electrical problem, the power dispatcher also comes into play. They make sure that the power lines are intact and checks for possible damages when typhoons or earthquakes occur.

Thus, this explains the answer.

8 0
3 years ago
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We’re did the pollution from acid rain and the factory eventually end up
Dimas [21]

Answer:

it ends up in our dirt and oceans/bodies of water

8 0
4 years ago
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