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sveta [45]
2 years ago
5

What determines the degree of polarity in a bond?

Chemistry
1 answer:
Ilia_Sergeevich [38]2 years ago
5 0

Answer:

The relative electronegativity of the two bonded atoms determines the polarity of a bond. If the difference in electronegativities between the two atoms is less than 0.4, the bond is nonpolar covalent. ... If the difference in electronegativities between the two atoms is more than 2.0, the bond is ionic.

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Give the number of covalent bonds that a carbon atom can form.
polet [3.4K]

Answer:

four covalent bonds

Explanation:

A carbon atom would form 4 covalent bonds.

For a covalent bond to be formed, an atom would share its valence electrons with another. In this process, each atom would require unpaired electrons for this bond to be formed. The number of available unpaired electrons would represent the number of electrons needed to complete the outer energy level of the atom.

In a carbon atom, we have no lone pair of electrons and 4 unpaired electrons. When these 4 electrons are shared with those of other atoms, they produce a complete octet which perfectly mimics the noble gases.

3 0
3 years ago
What advantage does having ultraviolet vision give bees?
nikdorinn [45]
Ultraviolet helps bee's see depth and they can see 3 dimensional, they can also see long distance. Bee's have have single lenses that helps the bee maintain stability and navigate. 

Short Answer: Ultraviolet vision helps bees help detect UV flower colors

- Hope this helps!

3 0
3 years ago
The pressure inside a gas cylinder is 3,506 mmHg ,how many atmospheres of pressure is the gas exerting on the cylinder
Lorico [155]

Below are the choices:

a)0.2168 atm

b)4.613 atm

c)34.60 atm

d467.4 atm

B is correct answer.


4 0
3 years ago
Read 2 more answers
Heat of fusion (?Hfus) is used for calculations involving a phase change between solid and liquid, with no temperature change. F
Butoxors [25]

Answer:

q = 38,5 kJ

Explanation:

In its melting point, at 0°C, water is liquid. The boiling point of water is 100°C. It is possible to estimate the heat you required to raise the temperature of water from 0°C to 100°C using:

q = C×m×ΔT

Where C is specific heat of water (4,184J/g°C), m is mass of water (92,0g) and ΔT is change in temperature (100°C-0°C = 100°C)

Replacing:

q = 4,184J/g°C×92,0g×100°C

q = 38493 J, in kilojoules:

<em>q = 38,5 kJ</em>

<em></em>

I hope it helps!

6 0
3 years ago
A cube has the following dimensions: 7 cm x 8 cm x 10 cm and has a density of 45 g/cm3. Calculate the mass.
gizmo_the_mogwai [7]
Density = Mass / Volume
Mass = Density * Volume
Mass = 45 * 7 * 8 * 10
Mass = 25,200 grams

6 0
3 years ago
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