4 years ago

Write two key facts about covalent bondsc

Physics

1 answer:

Lelechka [254]4 years ago

5 0

Explanation:

Covalent bonds:

They are bonds that are formed by atoms that shares their valence electrons.
They are formed by atoms with very low electronegativity difference.
It is usually a bond between non-metals.

Covalent bonds are bonds formed when two atoms jointly shared their valence electrons in order to form a bond.

For the formation of this bond type, each of the atom requires odd or unpaired electrons.

To form a covalent bond, each of the two participating atoms would put down an unpaired electron to be used in forming a shared pair of electrons between them.

Learn more:

Covalent bonds brainly.com/question/6029316

#learnwithBrainly

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If a car changes ita velocity from 32km/hr to 54km/hr in 8.0 seconds, what is its acceleration

Andrews [41]

Firstly, let's convert the velocities in km/hr to m/s
32*1000/3600=8.89m/s
54*1000/3600=15m/s
From the formula, acceleration=V-U/t
15-8.89/8=0.76m/s²
hope this helps.

7 0

3 years ago

An object on a planet has a mass of 243 kg. What is the acceleration of the

Vesna [10]

Answer:

The gravitational acceleration of a planet of mass M and radius R

a = G*M/R^2.

In this case we have:

G = 6.67 x 10^-11 N (m/kg)^2

R = 2.32 x 10^7 m

M = 6.35 x 10^30 kg

Now we can compute:

a = (6.67*6.35/2.32^2)x10^(-11 + 30 - 2*7) m/s^2 = 786,907.32 m/s^2

The acceleration does not depend on the mass of the object.

3 0

3 years ago

A piece of rope is pulled by two people in a tug-of-war. each exerts a 400-n force. what is the tension in the rope?

Leokris [45]

Newtons 3.law: Action = Reaction

If a body exerts a force on a rope of 400 N the rope exerts a force on the body of 400N also. So the tension in the rope is 400N. See pictures below.