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Westkost [7]
3 years ago
15

Which of these is covalent NaCl CO2 Pb(NO3)2 AlCl3

Chemistry
1 answer:
dem82 [27]3 years ago
8 0

A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms.  so the covalent bond between the choices is the sodium chloride (NaCl) i hope this helps!

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Help me please :3 :3 :3 ;3
Alona [7]
I think the answer is C.
8 0
4 years ago
Will give brainliest, like, 5 stars and 5 points to best answer
Oliga [24]

evaporation systems allow for an endless source of water. you can grab cups of water straight from the sea or even a lake. the use of evaporation allows for you to drink water thats even healthier than getting it from a cloud and it will leave all of the bad parts that used to be in the water in the first container you pour into. this system is most useful in hot climates such as places near the equator.  

6 0
3 years ago
A balloon contains 2.0 L of air at 101.5 kPa. You squeeze the balloon to a volume of .75 L. What is the pressure of air on the i
Nataly_w [17]

You would use the formula for Boyle's Law:

(P1) (V1) = (P2) (V2)

(101.5) (2.0) = (P2?) (.75)

*P2 = 270kPa (You're allowed 2 significant figures)

P = Pressure

V = Volume

3 0
3 years ago
Read 2 more answers
Listed below are sets of elements.
Anna11 [10]
The correct answer is B) Chlorine, Sulfur, and Silicon

I'm 100% sure this is correct

Brainliest please!!!
7 0
3 years ago
Read 2 more answers
A 10-liter container has 2 moles of oxygen at a pressure of 92 kpa. The effective speed (rms) of the oxygen molecules in the gas
bezimeni [28]

The effective speed (rms) of the oxygen gas is 293.68 m/s.

<h3></h3><h3>What is Root-mean-square velocity?</h3>

Root mean square velocity is the square root of the mean of squares of the velocity of individual gas molecules

v_{rms}=\sqrt[]{\frac{3RT}{M} }

<em>where </em>R = universal gas constant

M = molar mass of the gas in kg/mol

T = temperature in Kelvin

According to the ideal gas law,

PV = nRT

RT = \frac{PV}{n}

Substitute in the rms velocity formula,

v_{rms} = \sqrt[]{\frac{3PV}{nM} }

P = 92 kPa, V = 10 L, n = 2 moles and M = 32 x 10⁻³ kg/mol

v_{rms} = \sqrt[]{\frac{3\times92\times10}{2\times32\times10^-^3} }

=293.68 m/s

Thus, the effective speed (rms) of O₂ gas is 293.68 m/s.

Learn more about Root-mean-square velocity:

brainly.com/question/15995507

#SPJ4

4 0
1 year ago
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