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3 years ago

What type of bond forms between atoms with very large differences in electronegativity?

Physics

1 answer:

yaroslaw [1]3 years ago

5 0

Answer:

Ionic or electrovalent bond

Explanation:

The electronegativity of an atom determines to what extent an atom would attract an electron towards it. So, they can form combine.

The nature of chemical bonding depends upon the difference between the electronegativity of the combining atoms.

When the electronegativity difference is

< 0.4 - forms non-polar covalent bonds

between 0.4 and 1.7 - polar covalent bonds

> 1.7 - ionic bond

Hence, when there is a large difference between the electronegativity of atoms, it forms ionic bonds.

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A diamond is underwater; A light ray enters one face of the diamond, then travels at an angle of 30 degrees with respect to the

otez555 [7]

According to snells law

n1 sin theta1 = n2 sin theta2
n1 = 1.333 (water)
n2 = 2.42 (diamond)
it is given that theta =30 degrees so
by putting the values we have

1.333 sin theta = 2.42 sin 30 

sin theta = (2.42/1.333) *0.5 =65.2 degree
so our conclusion is

the ray's angle of incidence θ1 on the diamond = 65.2 degree.
hope this helps

4 0

4 years ago

The x vector component of a displacement vector has a magnitude of 146 m and points along the negative x axis. The y vector comp

larisa86 [58]

Answer:

a) the magnitude of r is 184.62

b) the direction is 37.74° south of the negative x-axis

Explanation:

Given the data in the question;

as illustrated in the image blow;

To find the the magnitude of r, we will use the Pythagoras theorem

r² = y² + x²

r = √( y² + x²)

we substitute

r = √((-113)² + (-146)²)

r = √(12769 + 21316 )

r = √(34085 )

r = 184.62

Therefore, the magnitude of r is 184.62

To find its direction, we need to find ∅

from SOH CAH TOA

tan = opposite / adjacent

tan∅ = -113 / -146

tan∅ = 0.77397

∅ = tan⁻¹( 0.77397 )

∅ = 37.74°

Therefore, the direction is 37.74° south of the negative x-axis

7 0

3 years ago

Many scientists accept a theory about the origin of the universe, called the big bang theory. describe at least one piece of sci

alexandr402 [8]

Red shift is one piece of observational evidence which supports the big bang theory. The fact that galaxies are moving away from us means that the universe was once much smaller, supporting the big bang theory which states that all the matter in the universe once occupied a single point with infinite density.

3 0

3 years ago

Explain a lever and a pivot in a full sentence

worty [1.4K]

Answer:

The lever is a movable bar that pivots on a fulcrum attached to a fixed point. The lever operates by applying forces at different distances from the fulcrum, or a pivot. As the lever rotates around the fulcrum, points farther from this pivot move faster than points closer to the pivot.

IF HELPED MARK AS BRAINLIEST

4 0

3 years ago

A cyclist rides 6.2 km east, then 9.28 km in a direction 27.27 degrees west of north, then 7.99 km west. A. What is the magnitud

Pani-rosa [81]

Answer:

Explanation:

given,

cyclist ride 6.2 km east and then 9.28 km in the direction of 27.27° west of north and then 7.99 km west.

vertical component = 9.28 cos∅

= 9.28 cos 27.27°

= 8.24 km

horizontal axis component = 9.28 sin ∅

= 9.28 sin 27.27°

= 4.5 km

distance of the final point from the origin

= 7.99 -(6.2-4.5)

= 6.29 km

displacement

$d = \sqrt{6.29^2+8.24^2}$

d = 10.37 km

b) $tan \theta = \dfrac{6.29}{8.24}$

θ = 37.36°

4 0

3 years ago