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Mandarinka [93]
3 years ago
15

an ice cube is placed in the sun later there is a puddle of water later still the.puddle is gone what kind of change has occured

​
Physics
1 answer:
TiliK225 [7]3 years ago
7 0

Clear question is;

An ice cube is placed in the sun. Later there is a puddle of water. Later still the puddle is gone. What kind of change has occurred?

Answer:

Physical change.

Explanation:

There are two type of changes called physical change and chemical change.

In Physical changes, there is only change in the appearance of the substance and not its chemical composition. Whereas, in Chemical changes the substance changes entirely into another substance with a new chemical formula.

Now, for the ice cube, it has melted from a solid state to a liquid state. Thus, there is only a change in appearance and not its chemical composition. Thus, it's a physical change that has occurred.

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Answer : The balanced two-half reactions will be,

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Explanation :

Voltaic cell : It is defined as a device which is used for the conversion of the chemical energy produces in a redox reaction into the electrical energy. It is also known as the galvanic cell or electrochemical cell.

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The balanced two-half reactions will be,

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Reduction half reaction (cathode) : Cd^{2+}(aq)+2e^-\rightarrow Cd(s)

Thus the overall reaction will be,

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Explanation:

given,

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Answer:

<h3>B. 19miles</h3>

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