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3 years ago

Why electric forces are assential to forming compunds?

2 answers:

8 0

Ions were once atoms with the same number of electrons and protons. Since they have opposite charges atoms are neutral. When they become ions the lose or gain electrons and become unbalanced.These different charges are attracted to each other via electric forces<span>.</span>

Neporo4naja [7]3 years ago

4 0

Electrical forces are essential to form compounds as they are root of attraction and repulsion in the atoms and thus compounds !

and these electric forces are also responsible for the structure of the compound as how it takes shape !

for more Info, comment !

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A(n) ________ system is one in which energy moves freely in and out, but no matter enters or leaves the system.

3241004551 [841]

A CLOSED SYSTEM. In a closed system in which energy moves freely in and out, but no matter enters or leaves.

4 0

3 years ago

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Two manned satellites approach one another at a relative velocity of v = 0.150 m/s, intending to dock. The first has a mass of m

Aleksandr [31]

Answer:

= - 0.41m/s

Explanation:

Velocity of first satellite

$V_1 = \frac{m_1 -m_2}{m_1 + m_2} u$

$V_1 = \frac{(4 \times 10^3) - (7.5 \times 10^3)}{(4 \times 10^3) + (7.5 \times 10^3)} \times 0.15\\\\= -0.30435$

Velocity of the second satellite

$V_2 = \frac{2m_1}{m_1 + m_2} u$

$V_2 = \frac{2 \times 4 \times 10^3}{4 \times 10^3 + 7.5 \times 10^3} \\\\= 0.10435$

Final velocity = V(1) - V(2)

$V = -0.30435 - 0.10435\\\\= -0.4087$

≅ -0.41m/s

8 0

3 years ago

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A photon with a frequency of 5.48 × 1014 hertz is emitted when an electron in a mercury atom falls to a lower energy level. Iden

ludmilkaskok [199]

The color should be green.

3 0

3 years ago

Lab number 14: sudden stops hurt newtons first law

kompoz [17]

Answer:

you want to know newtons first law here.

Explanation:

An object that is at rest stays at rest or stays in motion.

7 0

3 years ago

3.27 moles of an ideal gas in a 50.0 L tank has a pressure of 171000 Pa. What is the temperature of the gas? (Unit=degrees C)

laiz [17]

The temperature of the gas is 41.3 °C.

Answer:

The temperature of the gas is 41.3 °C.

Explanation:

So on combining the Boyle's and Charles law, we get the ideal law of gas that is PV=nRT. Here P is the pressure, V is the volume, n is the number of moles, R is gas constant and T is the temperature. The SI unit of pressure is atm. So we need to convert 1 Pa to 1 atm, that is 1 Pa = 9.86923× $10^{-6}$ atm. Thus, 171000 Pa = 1.6876 atm.

We know that the gas constant R = 0.0821 atmLMol–¹K-¹. Then the volume of the gas is given as 50 L and moles are given as 3.27 moles.

Then substituting all the values in ideal gas equation ,we get

1.6876×50=3.27×0.0821×T

Temperature = $\frac{84.38}{0.268467} =314.3 K$

So the temperature is obtained to be 314.3 K. As 0°C = 273 K,

Then 314.3 K = 314.3-273 °C=41.3 °C.

Thus, the temperature is 41.3 °C.

3 0

3 years ago