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3 years ago

What are columns in a periodic table usually referred to?

Chemistry

1 answer:

Lerok [7]3 years ago

6 0

Answer: groups or families

Explanation:

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A polar bond results when two atoms have a significant difference in

Nezavi [6.7K]

Polar bond is formed by 2 non-metal atoms which have a significant difference in electronegativity.

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4 years ago

This is science but for some reason I’m kinda stuck on this question so if anybody wanna help me that would be great

IRISSAK [1]

12 as there a 12 present in this balanced equation.

7 0

3 years ago

A Silty Clay (CL) sample was extruded from a 6-inch long tube with a diameter of 2.83 inches and weighed 1.71 lbs. (a) Calculate

inna [77]

Answer:

a) the wet density of the CL sample is 0.0453 lb/in³

b) the water content in the sample is 65.37%

c) the dry density of the CL sample is 0.0274 lb/in³

Explanation:

Given that;

diameter d = 2.83 in

length L = 6 in

weight m = 1.71 lbs

A piece of clay sample had wet-weight of 140.9 grams and dry-weight of 85.2 grams

a) wet density of the CL sample

wet density can be expressed as p = M /v

V is volume of sample which is; π/4×d²×L

so p = M / π/4×d²×L

we substitute

p = 1.71 / (π/4 × (2.83)²× 6

p = 1.71 / 37.741

p = 0.0453 lbs/in³

so the wet density of the CL sample is 0.0453 lb/in³

water content of sample is taken as;

w = (wet_weight - dry_weight) / dry_weight

we substitute

w = (140.9 - 85.2) / 85.2

w = 55.7 / 85.2

w = 0.6537 = 65.37%

therefore the water content in the sample is 65.37%

dry density of the CL sample

to determine the dry density, we say;

Sd = p / ( 1 + w )

we substitute

Sd = 0.0453 / ( 1 + 0.6537)

Sd = 0.0453 / 1.6537

Sd = 0.0274 lb/in³

therefore the dry density of the CL sample is 0.0274 lb/in³

8 0

3 years ago

Phosphorus will ____ electrons to complete its octet changing into an ____

Paraphin [41]

Steal; Anion
This is the answer because phosphorous is very electronegative.

3 0

3 years ago

In the bohr model of the hydrogen atom, the radius of the electron orbit increases by a factor of four. What happens to the magn

cricket20 [7]

The magnitude of the orbital angular momentum of the electron is doubled when the radius of the electron orbit increases by a factor of four.

<h3>What is orbital angular momentum?</h3>

The orbital angular momentum is the sum of angular momenta of all electrons, it is the rotational analog of the linear momentum.

The formula of angular momentum

$\rm mvr = \dfrac{nh}{2 \pi}$

Thus, the magnitude of the orbital angular momentum of the electron is doubled when the radius of the electron orbit increases by a factor of four.

Learn more about orbital angular momentum

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7 0

2 years ago