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dusya [7]
3 years ago
12

How is the scientific definition of "heat" different from how we use it every day? PLEASE NEED THE ANSWER ASAP

Chemistry
1 answer:
klio [65]3 years ago
3 0
Heat is energy, that can be transferred to another item, which is “less hot”.
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What are some chemical and physical properties of soap (saponification) please help it’s very urgent!
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Answer: Soaps are sodium or potassium fatty acids salts, produced from the hydrolysis of fats in a chemical reaction called saponification. Each soap molecule has a long hydrocarbon chain, sometimes called its 'tail', with a carboxylate 'head'.

Explanation: Saponification is an exothermic chemical reaction—which means that it gives off heat—that occurs when fats or oils (fatty acids) come into contact with lye, a base. In this reaction, the triglyceride units of fats react with sodium hydroxide or potassium hydroxide and are converted to soap and glycerol.

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3 years ago
Determine whether heating or cooling takes place during each process, freezing, evaporation, condensation, melting sublimation,
Sergeeva-Olga [200]

Answer :

Heating takes place during the process of Evaporation, Melting, Sublimation.

Cooling takes place during the process of Freezing, Condensation, Deposition.

Explanation :

Heating : It means thermal energy releases.

Cooling : It means thermal energy absorbs.

Evaporation : It is a type of vaporization process in which a liquid changes into gas phase by providing heat.

Melting : It is a process in which a solid changes into liquid phase by providing heat.

Sublimation : It is a process in which a solid changes directly into gas phase without passing through a liquid phase.

Freezing : It is a process in which a liquid transform into a solid phase at low temperature.

Condensation : It is a process in which a water vapor(gas) changes into liquid state at low temperature.

Deposition : It is a process in which a gas transforms directly into a solid phase without passing through a liquid phase.


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A weight loss supplement is advertised in several popular beauty and fashion magazines. The advertisements claim that "the suppl
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4. Which of the following describes a hydrogen bond? *
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Answer:

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Which of the following is a homogeneous mixture?
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