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almond37 [142]
3 years ago
8

Hi, can someone help me with chemistry

Chemistry
1 answer:
Dominik [7]3 years ago
6 0
Idk look it up on another website
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a transistor has beta=180 calculate the approximate collector and base currents if the emitter current is 10ma
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Explanation:

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which of the following compounds exhibits dipole -dipole forces as its strongest attraction between molecules? o2,ch3Br,CCl4,He,
Archy [21]

Answer:

B. CH3Br

Explanation:

Dipole -Dipole interactions take place in polar molecules.

CH3Br exhibits dipole -dipole forces as its strongest attraction between molecules because it is a polar molecule due to the slightly negative dipole present on the Br molecule.

While O2 is a nonpolar molecule due to its linear structure, CCl4 has zero resultant dipole moment, Helium is non-polar and BrCH2CH2OH is a non polar compound having net dipole moment is zero.

Hence, the correct option is B. CH3Br.

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_: brings food and water to your cells.
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What will be the effect on the solubility of BaF2 if the following changes are made: increasing temperature; adding NaF; adding
borishaifa [10]

In BaF₂ the solubility will decreases on adding NaF

the solubility will increases on adding HCl

<h3>SOLUBILITY OF BARIUM FLUORIDE</h3>
  • Increase in temperature will increase the solubility of the solid.
  • By adding NaF - decrease the solubility of BaF₂
  • By adding HCl - increase the solubility of BaF₂

<h3>BARIUM FLUORIDE</h3>
  • It is colourless solid that occur as rare mineral
  • It is corroded by moisture
  • It is used in window of IR spectroscopy

Hence the barium fluoride the solubility decreases on adding NaF and increases on adding HCl.

Learn more about the solubility on

brainly.com/question/6841847

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2 years ago
Comparing the energy and particle motion of the four states of matter, rank them from least energy to most energy.
Alekssandra [29.7K]

The ranking of the states of matter from the least energy to most energy is; Solid, liquid, gas, plasma. Option D

<h3>What is the kinetic theory of matter?</h3>

We know that from the kinetic theory of matter, the molecules that compose matter are in constant random motion and thus they collide with the walls of the container.

Solids have great intermolecular forces hence the particles do not translate. The particles in a liquid are more looses held thus they translate. In gases and plasma, the intermolecular interaction is quite infinitesimal hence they move at high speeds.

Thus, the ranking of the states of matter from the least energy to most energy is; Solid, liquid, gas, plasma. Option D

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6 0
1 year ago
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