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hram777 [196]
4 years ago
10

Jim drops an iron magnet during a chemistry lab experiment. He finds that it is no longer magnetic. What has happened in terms o

f its properties?a. A physical change occurred in which the iron remained iron, but lost one of its physical properties. b. A physical change occurred that changed the iron in the magnet into nickel. c. A chemical change occurred that changed the iron in the magnet into nickel. d. A chemical change occurred in which the iron remained iron, but lost one of its chemical properties.
Chemistry
2 answers:
jok3333 [9.3K]4 years ago
4 0

Answer: option A.

A physical change occurred in which the iron remained iron, but lost one of its physical properties

Explanation: magnetization and demagnetization is a physical change as no new substance is form and it is easily reversed. When an iron rod is magnetized, it can loss it magnetic property by hitting it. So when an iron rod which is magnetized falls from a height it can also loss its magnetic property

pav-90 [236]4 years ago
4 0

Answer:

a physical change occurred in which the iron remained iron, but lost one of its physical properties is Correct

Explanation:

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AleksAgata [21]

Answer:

17.2 moles of Iron are required

Explanation:

Based on the chemical reaction:

2Fe + 3S → Fe₂S₃

<em>2 moles of Fe react with 3 moles of S to produce 1 mole of Iron (III) sulfide</em>

<em />

Assuming and excess of sulfur, if we want to obtain 8.6 moles of Fe₂S₃ are required:

8.6 moles Fe₂S₃ * (2 moles Fe / 1mol Fe₂S₃) =

<h3>17.2 moles of Iron are required</h3>
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A compound with the formula C6H12 may or may not be a saturated hydrocarbon.
astraxan [27]

A compound with the formula C6H12 is not considered a Saturated hydrocarbon.

Why is C6H12 isn't considered a Saturated hydrocarbon?

The ring's presence demonstrates that it is unsaturated. Keep in mind that the general formula for aliphatic hydrocarbons, CnH2n+2, serves as the foundation for its saturation. A chemical is unsaturated if it does not meet this requirement.

Example:

Hexane (C6H14)

C = 6; H = 14 = 2(6) + 2

resulting in hexane becoming saturated.

Cyclohexane(C6H12)

C = 6 and H = 12 do not equal 14 (x)!

cyclohexane is an unsaturated molecule as a result.

Cycloalkanes have the general formula C2H2n as well.

Hence, the given statement is false.

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Answer:

1, 2, 3, ..., 250

Explanation:

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evaporation

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