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zvonat [6]
3 years ago
14

What is an example of chemical change

Chemistry
2 answers:
Helga [31]3 years ago
4 0
 metal rusting in salt water
hammer [34]3 years ago
4 0

Answer:

Metal corroding in salt water.

Explanation:

Chemical reaction may be defined as the process of chemical transformation of one type of chemical substance into the another type of substance. Chemical reaction is a type of irreversible reaction.

Corrosion is an example of chemical reaction. The metals get completely destroyed and a layer of rust (chemical substance) is deposited over the metal. The sat water enhances the process of metal corroding. The new iron compound is produced during the process of metal corrosion in salt water.

Thus, the correct answer is option (3).  

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Plastics are synthetic, organic polymers. how are plastics similar and different to polysaccharides
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Why is large-scale nuclear fission a rare phenomenon on Earth? A. There isn't enough energy to start a chain reaction in nature.
siniylev [52]

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6 0
3 years ago
Read 2 more answers
What is the difference between soluble and insoluble
klemol [59]

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5 0
3 years ago
. Consider the following half-reactions:
Vedmedyk [2.9K]

d. Fe(s) and Al(s)

<h3>Further explanation</h3>

In the redox reaction, it is also known  

Reducing agents are substances that experience oxidation  

Oxidizing agents are substances that experience reduction

The metal activity series is expressed in voltaic series  

<em>Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Ag-Pt-Au  </em>

The more to the left, the metal is more reactive (easily release electrons) and the stronger reducing agent  

The more to the right, the metal is less reactive (harder to release electrons) and the stronger oxidizing agent

So that the metal located on the left can push the metal on the right in the redox reaction  

The electrodes which are easier to reduce than hydrogen (H), have E cells = +

The electrodes which are easier to oxidize than hydrogen have a sign E cell = -

So the above metals or metal ions will reduce Pb²⁺ (aq) will be located to the left of the Pb in the voltaic series or which have a more negative E cell value (greater reduction power)

The metal  : d. Fe(s) and Al(s)

7 0
3 years ago
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