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AlexFokin [52]
3 years ago
14

Why do atmoic numbers increase from left to right across any given row of the periodic table

Chemistry
1 answer:
stira [4]3 years ago
4 0
They have increased number of protons which is the atomic number. 
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What we call "tin cans" are really iron cans coated with a thin layer of tin. The anode is a bar of tin and the cathode is the i
UNO [17]

Answer:

Fe (s) + Sn^{2+} (aq)\rightarrow Fe^{2+} (aq) + Sn (s)

Explanation:

Although the context is not clear, let's look at the oxidation and reduction processes that will take place in a Fe/Sn system.

The problem states that anode is a bar of thin. Anode is where the process of oxidation takes place. According to the abbreviation 'OILRIG', oxidation is loss, reduction is gain. Since oxidation occurs at anode, this is where loss of electrons takes place. That said, tin loses electrons to become tin cation:

Sn (s)\rightarrow Sn^{2+} (aq) + 2e^-

Similarly, iron is cathode. Cathode is where reduction takes place. Reduction is gain of electrons, this means iron cations gain electrons and produce iron metal:

Fe^{2+} (aq) + 2e^-\rightarrow Fe (s)

The net equation is then:

Sn (s) + Fe^{2+} (aq)\rightarrow Fe (s) + Sn^{2+} (aq)

However, this is not the case, as this is not a spontaneous reaction, as iron metal is more reactive than tin metal, and this is how the coating takes place. This implies that actually anode is iron and cathode is tin:

Actual anode half-equation:

Fe (s)\rightarrow Fe^{2+} (aq) + 2e^-

Actual cathode half-equation:

Sn^{2+} (aq) + 2e^-\rightarrow Sn (s)

Actual net reaction:

Fe (s) + Sn^{2+} (aq)\rightarrow Fe^{2+} (aq) + Sn (s)

6 0
3 years ago
What’s the density of a polypropylene
maria [59]

Answer:

0.92 g/cm³

hope this helps

3 0
3 years ago
Which type of radioactive particle(s) has/have been emitted in the following equation?
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Notice the subscript went from 83 to 84 and the 214 stayed the same that means it was beta decay.
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Conduction happens as energy flows from a warmer object to a cooler object. Which of the following is an example of conduction?
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<span>Warmer air is pushed upward and out of the way by cooler air.</span>
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I pretty sure it is Gas. Hope this is what you're looking for. Have a great day! :D
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