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Andrej [43]
3 years ago
7

(Can someone please help me...im literally done with brainly...) Which answer best completes the following sentence? _____ is an

example of physical change while _____ is an example of a chemical change. (1 point) Freezing water, boiling nitrogen Breaking a pencil, rusting of iron Burning wood, dissolving salt in water Bending a piece of aluminum, condensing water vapor
Chemistry
1 answer:
Furkat [3]3 years ago
5 0

Answer:

(1) breaking a pencil (2) rusting of iron

Explanation:

breaking a pencil does not alter the chemical properties of the pencil, it merely breaks it into 2 while the rusting of iron is changing the properties chemically because the iron is oxidizing and reacting with the water and oxygen in the atmosphere

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What is the difference between an enthalpy driven reaction and entropy driven reaction?
Crazy boy [7]
<span>Enthalpy is regarding the amount of heat that is given off or taken in during the process of a reaction, while entropy is about the disorderliness of a reaction. 
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5 0
3 years ago
Hydrogen chloride gas is dissolved in water to produce a solution of hydrochloric acid.
asambeis [7]

Answer:

Water is a polar solvent

Explanation:

We must know that pure dry hydrogen chloride gas does not show any acidic property.

In fact, when hydrogen chloride is dissolved in water, it breaks up into H3O^+ ions and Cl^- ions. This is possible because water is a polar solvent and assists the ionization of HCl.

In nonpolar solvents such as benzene, hydrogen chloride gas is not ionized hence it does not show any acidic property in a benzene solution.

3 0
3 years ago
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HACTEHA [7]
Not sure gets hotter prolly
5 0
2 years ago
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The masses of four objects are given in this table. If all of the objects have the same acceleration, which will require the gre
worty [1.4K]

Answer:

Object 4 in the example

Explanation:

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Notice that all of them have the same acceleration. This means, the greater the mass, the greater the force for a fixed acceleration. Simply speaking, the forces for each of the objects would be 2a, 4a, 6a and 8a respectively.

Since we're interested in the magnitude of the force and not direction, we neglect whether acceleration is positive or negative. This means that object 4 will require the greatest force to move, as it has the greatest mass.

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3 years ago
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Answer:

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5 0
2 years ago
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