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Effectus [21]
3 years ago
7

Is "dissolving in water" a chemical change or a physical change?

Chemistry
2 answers:
Schach [20]3 years ago
8 0

Answer:

In fact this should be considered more of a continuum. For example salt dissolving in water is usually considered to be a physical change, however the chemical species in salt solution (hydrated sodium and chlorine ions) are different from the species in solid salt.

Explanation:

Hope this helps! Brainly me <3

JulijaS [17]3 years ago
3 0

A physical Change

Explanation:

BECAUSE the dissolving material can solidify after a while

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DedPeter [7]

Answer:

The use of pomace for animal feed might be chosen if minimizing production costs is desired

Explanation:

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3 0
2 years ago
Which of these pairs indicates an incorrect coupling of reversible reactions?dehydration synthesis and hydrolysisanabolic and ca
Olegator [25]

Answer:

option C= hydrolysis and break down

Explanation:

All other three pairs are correct coupling of each others.

Option A= dehydration synthesis and hydrolysis

Dehydration synthesis:

In dehydration synthesis monomers combine through the covalent bonds and form large molecules. The large molecules are called polymers. The water as a byproduct also released when monomers joints together.

Hydrolysis:

In hydrolysis the polymers are break down into monomers by using water molecules. The catalysts are also required in this process.

Option B= Catabolic and Anabolic

Anabolic:

In this process smaller molecules combine to gather to form large complex molecules by using energy.

For example simple glucose molecules join together to form large disaccharides.

Catabolic:

It is the break down of large complex molecules to the smaller molecules.

For example during cellular respiration sugar molecules break down and generate energy.

Option D=  Break down and synthesis

The break down and synthesis are also reverse pair of each others. The  synthesis involve the formation of molecules form smaller component while the break down involve destruction of molecules into smaller units.

8 0
3 years ago
Human activities can accelerate the process of
Aleks [24]
I believe the answer is C) both

Hope this helps
4 0
3 years ago
Which of the following statements is true?
Ivan

Answer:

B.

Explanation:

Most metals can be drawn into a wire while nonmetals would break apart.

5 0
4 years ago
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What best describes the temperature at which a solid turns into a liquid
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Melting point... hope this helps
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