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2 years ago

Define equilibrium. plz and thxxx

Chemistry

2 answers:

Stella [2.4K]2 years ago

6 0

Answer:

Equilibrium is the state of balance. Where opposing forces cancel each other out and no changes are occurring.

Explanation:

Serggg [28]2 years ago

5 0

Answer:

Equilibrium is the state of balance. Where opposing forces cancel each other out and no changes are occurring.

Good luck, hope this helps :)

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The electron cloud of HF is smaller than that of F2, however, HF has a much higher boiling point than F2 has. Which of the follo

mafiozo [28]

Answer:D

Explanation:

The high boiling point of HF is not attributable to the dispersion forces mentioned in the question. In HF, a stronger attraction is in operation, that is hydrogen bonding. This ultimately accounts for the high boiling point and not solely the dispersion model as in F2.

7 0

2 years ago

cuantos gramos de oxígeno necesarios para que reaccionen completamente 28 gramos de etanol (c2h5oh) en la reaccion de combustion

tigry1 [53]

Answer:

I dont speak this language sorry :(

Explanation:

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2 years ago

How do you dilute a concentrated solution?

AVprozaik [17]

Answer:

add more water

Explanation:

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2 years ago

The cylinder of aluminum in class was approximately 13mm in circumference and 42mm in length. What would be it's approximate mas

Roman55 [17]

Answer:

Mass, m = 1.51 grams

Explanation:

It is given that,

The circumference of Aluminium cylinder, C = 13 mm = 1.3 cm

Length of the cylinder, h = 4.2 cm

We know that the density of the Aluminium is 2.7 g/cm³

Circumference, C = 2πr

$r=\dfrac{C}{2\pi}\\\\r=\dfrac{1.3}{2\pi}\\\\r=0.206\ cm$

Density is equal to mass per unit volume.

$d=\dfrac{m}{V}$

m is mass of the cylinder

V is the volume of the cylinder

$V=\pi r^2h\\\\V=\dfrac{22}{7}\times0.206^2\times 4.2\\\\V=0.5601\ cm^3$

So,

$m=d\times V\\\\m=2.7\times 0.5601\\\\m=1.51\ g$

So, the mass of the cylinder is 1.51 grams.

5 0

2 years ago

A newly discovered element, Z, has two naturally occurring isotopes. 90.3 percent of the sample is an isotope with a mass of 267

kirill115 [55]

Ok so, remember that the average atomic mass is what is seen on the periodic table. It is the average mass of all of the isotopes with their frequency taken into account. What you need to do is add the products of the masses and frequencies Just like this:

0.903*267.8 + 0.097*270.9
When you add it the result is what you are looking for

4 0

2 years ago