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3 years ago

What do scientists use to increase the surface area of a solute?

Chemistry

2 answers:

Tomtit [17]3 years ago

8 0

Answer:

Scientist increases the surface area of a solute by grinding the solute with a motor and pestle.

Explanation:

Grinding of a solid solute exposes the reactant molecules to new surfaces. When the surface area increases it allows greater frequency of collision between the reactant particles. The reactant particles can now collide in proper orientation. The increase in surface area thus speeds up the rate of the reaction.

mojhsa [17]3 years ago

5 0

use a mortar & pestle to grind the solute into smaller particles, thus increasing the surface area.

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Is condensation an exothermic or endothermic process? Based on Le Cha^telier’s principle, would you predict the vapor pressure o

Irina18 [472]

Explanation:

A process in which water vapor changes into liquid state is known as condensation. As we know that when energy is released in a reaction then it is known as exothermic reaction and when energy is absorbed in a reaction then it is known as endothermic reaction.

As vapors have high energy so, when they change into liquid state then heat energy is released by them. Therefore, condensation is an exothermic reaction.

As per Le Chatelier's principle, any disturbance caused in an equilibrium reaction will tend to shift the equilibrium in a direction away from the disturbance.

So, when there will occur a decrease in temperature then molecules of a gas will come closer to each other. Hence, there will also occur a decrease in vapor pressure of the gas.

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3 years ago

Today, nuclear power plants rely on fission. While fusion reactions have been used in nuclear bombs, many scientists and enginee

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Explanation:

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3 years ago

Aleksandr [31]

Answer:

D. Using a battery

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3 years ago

What would the Net Ionic Equation be for the following:

marin [14]

The net equations are obtained from the double displacement of the cations and anions, then balance.

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3 years ago

Three common ores of iron are FeO, Fe2O3, and Fe3O4. Iron ores are often reduced to elemental iron by heating in the presence of

brilliants [131]

Answer:

Answers are explained below

Explanation:

(a)

Oxidation number of iron :

FeO = +2

Fe2O3= +3

Fe3O4 = +2 and +3 since Fe3O4 is the mixture of FeO and Fe2O3.

(b) FeO + CO ----> Fe (s) + CO2

(c) In a pure iron metallic bond is exist between the particles of Fe. But in the form of ore metals forms ionic bond with the non-metals.

Hence the properties vary.

Yes carbon steel has greater strength than that of pure iron but retains the property of iron because no chemical reaction occurs between carbon and iron.

Mixing of carbon in iron is a type of physical change since there is no chemical reactions occur between the carbon and iron. Carbon atoms diffuses in the place between the iron atoms.

(f) One of the property of non-metals are brittleness. It is non ductile .

So when the percentage of carbon increases its atoms also occupying more and more free places.

And increasing the brittleness. So the iron becomes less ductile.

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3 years ago