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3 years ago

If the reaction shown below is exothermic, the energy level of the reactants is ________. h2 + o2 → 2h2o

Chemistry

1 answer:

never [62]3 years ago

5 0

An exothermic reaction is one which is accompanied by the release of heat energy.

In the given situation, hydrogen and oxygen combine to form water along with the generation of heat.

2H2 + O2 → 2H2O + heat

Based on the law of conservation of energy: 'energy can be neither created nor destroyed". This implies that whatever energy is released must have been present in the reactants. Therefore, the reactants must be in a higher energy level than products.

If the reaction shown below is exothermic, the energy level of the reactants is higher than products.

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What is thought to cause the dispersion forces?

Ilya [14]

a) attraction between ions causes the dispersion forces.

Attraction between ions is a temporary attractive force which occurs when electrons in two consecutive adjacently placed atoms occupies positional confined areas that make the atoms acting like Temporary dipoles.

Dispersion forces or London Dispersion forces is the weakest force caused due to motion of electron.

On increasing the number of electrons the magnitude to Dispersion forces increases.

Dispersion forces also depends upon the atomic or the molecular weight of the given substance.

It is caused by an unequal and uneven distribution of the electrons inside an atom.

This causes a slight positive and slight negative charge to be formed inside an atom by establishing a temporary dipole. This temporary dipole induces a nearby atom by inducing another temporary dipole in the other one.

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2 years ago

Select the compounds that cannot undergo friedel crafts alkylation. check all that apply. check all that apply. aniline phenol k

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3 years ago

How many moles are in 390g of silver nitrate

Karolina [17]

There are 2.3 moles (because of significant figures)

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Which of the following is true about an ionic compound?

Genrish500 [490]

<span>D. all of the above because ionic compound is a salt. it is also held together by ionic bonds. it has anions and cations </span>

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3 years ago

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Help me with this pleaseeeeeee

stiks02 [169]

Magnesium oxide is an ionic compound with a very high melting point and which requires a large amount of energy for melting.

<h3>What are ionic compounds?</h3>

Ionic compounds are compounds which are formed between oppositely charged ions which are held together by electrostatic forces of attraction between the oppositely charged ions.

Ionic compounds are formed when metal atoms donate electrons to non-metals atoms to form ions.

Magnesium oxide is an ionic compound.

The nature of bonding is ionic bonding.

It has a crystalline lattice structure.

The forces of attraction is electrostatic forces of attraction.

It has a high melting point of 2,852 °C, and thus requires a large amount of energy go melting to occur.

Therefore, magnesium oxide is an ionic compound which requires a large amount of energy for melting.

Learn more about ionic compounds at: brainly.com/question/11638999

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2 years ago