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Alik [6]
3 years ago
14

Which combination of atoms can form a polar covalent bond?

Chemistry
1 answer:
AnnZ [28]3 years ago
5 0
Hydrogen and oxygen cn form a polar covalent bond

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3. give reasons
soldi70 [24.7K]

Answer:

A.A gas exerts pressure on the walls of the container. Reason: They have high kinetic energy and negligible force of attraction to move constantly moving with high speed in all directions. ... These collisions of the gas particles with the container walls exert pressure on the walls of the container.

B A gas exerts pressure on the walls of the container due to imapact of its gas molecules with hight velocity .

C.A wooden table should be called a solid. Reason: It has a definite shape and volume. It is very rigid and cannot be compressed, i.e., it has a solid characteristic.

D.We can easily move our hand in air but to do the same through a solid block of wood we need a karate expert. It is because the molecules of air has less force of attraction between them and a very small external force can separate them and pass through it.

Explanation:

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3 0
3 years ago
Which one is more metallic? <br><br> A) Gold or B) Bismuth
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Answer:

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Using the activity series provided. Which reactants will form products? Na &gt; Mg &gt; Al &gt; Mn &gt; Zn &gt; Cr &gt; Fe &gt;
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Answer:

Fe + Cu(NO3)2 →

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3 0
3 years ago
The specific heat of aluminum is 0.214 cal/g.oC. Determine the energy, in calories, necessary to raise the temperature of a 55.5
Natasha2012 [34]
For this problem, we use the formula for sensible heat which is written below:

Q= mCpΔT
where Q is the energy
Cp is the specific heat capacity
ΔT is the temperature difference

Q = (55.5 g)(<span>0.214 cal/g</span>·°C)(48.6°C- 23°C)
<em>Q = 304.05 cal</em>
4 0
3 years ago
Calculate the quantity of energy released when 783 g of steam condenses.<br><br> (show work)
Angelina_Jolie [31]

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