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weeeeeb [17]
3 years ago
11

Question 4 of 20

Chemistry
1 answer:
Nimfa-mama [501]3 years ago
6 0

Answer:

D

Explanation:

Reacting with acid is the only chemical property out of the 4 options. The rest are physical

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Which statement describes a change that occurs during a chemical reaction? A. Atoms in the original substances are changed into
trapecia [35]

Answer:

B. Atoms in the original substances are arranged in a different way to make new substances.

Explanation:

The best statement that describes a change that occurs in a chemical reaction is that atoms in the original substances are arranged in a different way to make new substances.

  • Chemical reactions obey the law of conservation of matter.
  • The law postulates that "matter is neither created nor destroyed in a chemical reaction but they are simply rearranged".
  • Therefore, atoms  of compounds forms new bonds by rearranging to give a new product.
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A sample of chlorine gas is at 300K and 1.00 atm. At what temperature and pressure would it behave more like an ideal gas?
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In lower temperatures, the molecules of real gases tend to slow down enough that the attractive forces between the individual molecules are no longer negligible. In high pressures, the molecules are forced closer together- as opposed to the further distances between molecules at lower pressures. This closer the distance between the gas molecules, the more likely that attractive forces will develop between the molecules. As such, the ideal gas behavior occurs best in high temperatures and low pressures. (Answer to your question: C)  This is because  the attraction between molecules are assumed to be negligible in ideal gases, no interactions and transfer of energy between the molecules occur, and as temperature decreases and pressure increases, the more the gas will act like an real gas.

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3. What is the name of the technique used to weigh the unknown liquid in part A of the
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The technique is called weighing by difference

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PLEASE ANSWER
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I think its A.
if one force cannot overcome the other, the object remains stationary.
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What elements make up duralumin( an alloy)?​
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In addition to aluminium, the main materials in duralumin are copper, manganese and magnesium.

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