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Valentin [98]
3 years ago
11

During an earthquake, the ground surface moves _____. only in a vertical direction not at all in any direction only in a horizon

tal direction
Chemistry
2 answers:
Ainat [17]3 years ago
8 0

Answer: in any direction

<em>- Prodixy</em>

Elena L [17]3 years ago
6 0

Answer:

In Any Direction

Explanation:

Rayleigh waves, also called ground roll, travel like ocean waves over the surface of the Earth, moving the ground surface up and down. They cause most of the shaking at the ground surface during an earthquake. Love waves are fast and move the ground from side to side.

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KIM [24]

Answer:

Sorry I am not very good at chemistry.

Explanation:

7 0
3 years ago
What 3 atoms make up the universe
jek_recluse [69]
Hydrogen, helium and oxygen
6 0
3 years ago
A student walks 50 m north, stops, and then travels 32 m south. What is her displacement?
goblinko [34]

Her displacement = 18 m

<h3>Further explanation</h3>

Given

walks 50 m north and 32 m south

Required

displacement

Solution

Displacement shows vector motion that has magnitude and direction.

Displacement only looks at the distance between the starting point and the end point

Because it takes direction into account, a positive or negative sign is required

We determine that in vertical motion the upward direction is positive and the downward direction is negative

While the horizontal movement to the right is positive and the left has a negative sign

Students moving north (from the starting point) are moving positively by + 50 m

then moving south which means moving negative as far as -32 m

So that the displacement is

\tt 50-32=18~m

7 0
3 years ago
True or false Different types of atoms can bond together to make molecules
Aleonysh [2.5K]

Answer:

true

Explanation:

because if you really take a moment to think about it atoms are made of molecules.

4 0
3 years ago
Help anyone can help me do this question,I will mark brainlest.​
Vika [28.1K]

Explanation:

NA2SO3

Combination of these three elements forms following compounds.

And the compound that's going to be formed,depends on the ratio of available oxygen and sulphur.

Depends on the ratio of sulfur to oxygen...

sodium sulfate, Na2SO4

sodium sulfite, Na2SO3

sodium thiosulfate, Na2S2O3

ionic bond is present in between SO3 -2 and Na+2

structure of SO3 -2 [take - sign as delta - which here indicates,partial formal charge of oxygen] (image below)

Here,The oxygen is more electronegative.So,2 oxygen atoms drag one Electron from sulphur atom,leaving behind the formal charge of -1 on two oxygen atoms.

The third oxygen forms covalent bond by sharing 2 electrons. (Actually this ion has resonance structure)

This sulphite ion combines with two sodium ions to form two ionic bonds.This happens when sodium, being an alkali metal dontes it's valence electron to oxygen.

SO2

In Sulphur dioxide, Sulphur is bonded to 2 oxygen atoms. Oxygen is more electronegative than Sulphur and thus, shows a fixed valency of 2. As a result each oxygen forms two bonds with the Sulphur atom making its valency 4.

NAHSO4

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Questions & Answers

CBSE

Chemistry

Grade 11

Oxidation State or Oxidation Number

Question

Answers

Related Questions

The oxidation state of sulphur in NaHSO4 ?

A) 0

B) + 2

C) −2

D) + 4

E) + 6

Answer

VerifiedVerified

72.9K+ Views

Hint: The oxidation state is defined as the charge on the atom. The sum of the oxidation state of an atom in a molecule is equal to the charge on the molecule. The neutral molecules charge less species. It has zero charges.

Complete Solution :

- The oxidation number of an atom is defined as the charge on an atom that appears on the atom on forming an ionic bond. An atom which has higher electronegativity has a negative oxidation state and more electropositive elements have positive oxidation state.

- We are interested in determining the oxidation state of an atom in a molecule. We know that the net charge on a neutral atom or molecule is always equal to zero. Let’s determine the oxidation state of S in the NaHSO4 .

- The oxidation number of alkali metal that is a sodium atom is equal to +1 . Similarly the hydrogen has an +1 oxidation state. Oxygen is an electronegative element. It has an −2 oxidation state. The oxidation states are as listed below:

Element Oxidation state

Na +1

H +1

O −2

We know that the sum of the oxidation state of an atom in a neutral molecule is equal to zero. Then we have,

0 = O.S. of Na + O.S. of H + O.S. of S + 4(O.S. of O)

Let’s substitute the values of oxidation state .we have,

0 = 1 + 1 + O.S. of S + 4(−2)⇒O.S. of S= 8−2 = +6

Therefore the oxidation state of sulphur in NaHSO4 is equal to +6 . So, the correct answer is “Option E”.

H2S

Valency of sulphur is 2 in H2S

5 0
3 years ago
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