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Explanation:

Acidic radical

Acid radical is the ion formed after the removal of Hydrogen ion (H+) from an acid. Example: When H2SO4 loses H+ ion, it forms HSO4− which is an acid radical.

Basic radical

The ion formed after the removal of hydroxide ion (OH−) from a base is known as basic radical.

Answer:

Explanation:-

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The three major categories of energy for electricity generation are fossil fuels (coal, natural gas, and petroleum), nuclear energy, and renewable energy sources.

I think the answer is A. I know it's Planet X.

Answer:

The answer is C. 7.52 K

Explanation:

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Answer:

c2h4 (etthane........

bexcuse it has 6 bond of hydrogen

C₂H₄ molecules contains six bonding electrons. Therefore, option A is correct.

Chemical bonding is the process through which two or more atoms, molecules, or ions establish a chemical link to create a chemical compound. The atoms in the resultant molecule are held together by these chemical bonds.

Chemical bonds have three basic characteristics that must be taken into account: their strength, length, and polarity. The distribution of electrical charge among the atoms connected by a bond determines its polarity.

C₂H₄ molecules has six bonding electrons. This molecule is called as Ethylene. When bonding is done between two atoms, each atom shares a pair of electrons with each other.

Hence, for every one bond, two electrons are shared between two atoms

Thus, option A is correct.

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Answer:

The use and harm is:

use

1. used as a flavouring agent

2. used in production of car battery

used in the treatment of scurvy

harm

1. acids are caustic

2. vapours from some acid may damage the eye

3. is corrosive in nature

Answer:

It has been shown that acid rain has detrimental effects on trees, freshwaters and soils, destroys insects and aquatic life-forms, causes paint to peel, corrosion of steel structures such as bridges, and weathering of stone buildings and sculptures, as well as impacts on human health.

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Answer:

higher density and lower compressibility

Answer:

37%+24%+23%=84% , i wish my answer is correct

[tex]\\ \rm\longmapsto Distance=Speed(Time)[/tex]

[tex]\\ \rm\longmapsto Distance=25(2700)[/tex]

[tex]\\ \rm\longmapsto Distance=67500m[/tex]

The object travelling at 25 m/s, will travel a distance of 67500 m in 45 mins.

1 min = 60 s

Therefore,

45 mins = 45 × 60

Time = 2700

Speed = 25 m/s

Distance = speed × time

Distance = 25 × 2700

Therefore, the object will cover a distance of 67500 m in 2700 s (i.e 45 mins)

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Answer:

option A

an increase in entropy and a decrease in enthalpy

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Answer:

1 mole H2O has 6.02 × 10^23 molecules

Explanation:

B

Explanation:

option b is correct because

hydrogen is smallest atom

isotopes of elements have different atomic mass

atom mass have nothing to do with elemental identity

Answer:

wat

Explanation:

Answer:

The correct option for the process used to refine aluminum from its bauxite ore is option D.

D. Smelting

The reason why smelting is the correct choice is as follows;

Bauxite is the aluminum ore from which alumina, also known as aluminum

oxide, Al₂O₃, is produced. Bauxite is extracted from the topsoil regions of

some subtropical and tropical regions, and the Bayer process is primarily

then used to produce alumina from the bauxite.

Aluminum is produced from the alumina by an aluminum smelting process

known as the Hall—Heroult electrolytic process which involves the use of a

carbon anode and direct current to produce aluminum by reducing the

aluminum oxide

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Answer:

A) NaOH

got it right on the test.

Explanation:

Answer:

NaOH  

Explanation:

Explanation:

Your search - What is the answer to 9.7300x10^2+9.8700x 10^3 1.0843x 10^ in scientific notation - did not match any documents.

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Answer:

Physical properties are defined as the properties which can be observed without changing their chemical composition.

For example, color, volume, and molecular weight.

Chemical properties can be defined as, a properties that can be seen only after changing the substance's chemical identity.

For example, reactivity, toxicity, and flammability.

The fundamental differences between physical and chemical properties are as follows:

Chemical properties are related to chemical bonds of the substance, while physical properties are not.

In chemical properties, the chemical identity of substance changes while physical properties does not have any change.

Chemical properties predict the reaction of a substance, while physical properties only describe the appearance of the substance.

Explanation:

Answer:

1. 2.63x10^6

2. 39.2

Both answers have been rounded

Answer:

D. l=1

Explanation:

The second quantum number for one of the electrons in the 4p energy

sublevel of bromine is 1=1. Therefore, the correct statement is option A.

The second quantum number also called the azimuthal quantum number describes the shape of the orbital.

The possible values of l for a given value of the principal quantum number (n) range from 0 to (n-1) where n is a principal quantum number that describes the size of the orbital and the energy of the electron, where possible values of l determine the shape of the orbital.

In the 4p energy sublevel of bromine, n is equal to 4 because the energy sublevel and fourth principal energy level are associated. For p orbitals, the possible values of l are 1, which corresponds to a bell-shaped orbital.

Therefore, the second quantum number for one of the electrons in the 4p energy sublevel of bromine is 1.

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Answer:

cr2o72+H2o2-(r3+o2)

Explanation:

r62o72+H2o2-(r3+o2)

Answer:

i hope it will help you

Explanation:

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Answer:

NaCl is an electrovalent compound because the sodium and chlorine atoms give one electron from their outermost shells to each other in order to complete their octets

Explanation:

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Elements which have high electron negativity are more reactive than elements with low electron negativity.

This is because elements with high electron negativity will gain more electrons to become more stable.

When electron negativity of an element decrease it becomes more into its element form.

There will be more ionization energy of the elements who have more electron negativity.

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Answer:     An element will be more reactive if it has a very high or very low electronegativity.  

Is your answer

Answer:

MgO

Explanation:

Magnesium oxide is formed up of the ions Mg2+ and O2

Answer:

MgO

Explanation:

Mg2 + O2 is MgO, have a nice day

Taking into account the definition of molecular geometry, the correct option is option d.:  the bond angle of a linear molecule is 180 degrees.

In first place, molecular geometry or molecular structure is the spatial distribution of atoms around a central atom. Atoms represent regions where there is a high electron density, and are therefore considered electronic groups, regardless of the bonds they form.

That is, molecular geometry is the three-dimensional arrangement of the atoms that make up a molecule.

The molecular geometry of an element characterizes some of its physical or chemical properties, such as boiling point, viscosity, and density.

Linear molecules are molecules of the AB₂ type in which the central atom does not have lone pairs. To avoid repulsions between the binding pairs, arrange the B groups as far apart as possible. For that they must oppose each other 180 °.

In summary, linear molecular geometry describes the arrangement of different atoms with 180º bonds.

So, the correct option is option d.:  the bond angle of a linear molecule is 180 degrees.

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