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3 years ago

12

What’s an example of a single displacement reaction in everyday life

2 answers:

oksian1 [2.3K]3 years ago

5 0

Answer:

Any time a simple metal reacts with an acid it is a single displacement reaction.

Explanation:

nikitadnepr [17]3 years ago

4 0

A single displacement reaction is a reaction when a compound reacts with an element (eg. A + BC → AC + B). For the reaction to occur, the element replacing that in the compound must be more reactive. A metal can replace a metal and a non metal can replace a non metal, but a non metal can not replace a metal and vice versa. When metals are reacting, we use the activity series and when non metals are switching, the periodic table is used to determine if the reaction will happen.
A simple everyday example is acid indigestion. We can relieve the distress when the stomach produces too much
HCl by drinking a solution of sodium hydrogen carbonate. The H in the HCI
displaces the Na in NaHCO/3 to produce
H/2CO/3.

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It is expected that a chemical reaction will occur when copper metal is combined with aqueous zinc sulfate. Explain why there wi

REY [17]

Answer:

$E_{cell}$ = +ve, reaction is spontaneous

$E_{cell}$ = -ve, reaction is non spontaneous

$E_{cell}$ = 0, reaction is in equilibrium

Case 1: when copper metal is combined with aqueous zinc sulfate.

$Cu+ZnSO_4\rightarrow Zn+CuSO_4$

Here copper is undergoing oxidation ad thus acts as anode and zinc is undergoing reduction , thus acts as cathode.

$E^o_{cell}$ = standard electrode potential = $E^0_{cathode}- E^0_{anode}$

Where both $E^0$ are standard reduction potentials.

$E^0_{[Cu^{2+}/Cu]}= +0.34V$

$E^0_{[Zn^{2+}/Zn]}= -0.76V$

$E^0=E^0_{[Zn^{2+}/Zn]}- E^0_{[Cu^{2+}/Cu]}$

$E^0=-0.76-(+0.34)=-1.10V$

Thus as $E_{cell}$ is negative , the reaction is non spontaneous.

Case 2: when zinc metal and aqueous copper sulfate solution are combined.

$Zn+CuSO_4\rightarrow Cu+ZnSO_4$

Here zinc is undergoing oxidation ad thus acts as anode and copper is undergoing reduction , thus acts as cathode.

$E^o_{cell}$ = standard electrode potential = $E^0_{cathode}- E^0_{anode}$

Where both $E^0$ are standard reduction potentials.

$E^0_{[Cu^{2+}/Cu]}= +0.34V$

$E^0_{[Zn^{2+}/Zn]}= -0.76V$

$E^0=E^0_{[Cu^{2+}/Cu]}- E^0_{[Zn^{2+}/Zn]}$

$E^0=+0.34-(-0.76)=+1.10V$

Thus as $E_{cell}$ is positive , the reaction is spontaneous.

3 0

4 years ago

A student is able to lift 500N weight by applying 100N. What is the mechanical advantage of a simple machine?

Semmy [17]

Explanation:

Load=500N

Effort=100N

Now,

We have,

Mechanical advantage= Load / effort

= 500/100

=5

Therefore, mechanical advantage is 5.

5 0

3 years ago

Use the ruler to determine the length of the line measured to the correct degree of precision. 13.2 cm 13.25 cm 130 cm 132 mm

lapo4ka [179]

Your answer would be 13.25cm

Hope that helps!!!

3 0

4 years ago

Read 2 more answers

Granitic igneous rocks are all of the following EXCEPT ____.

baherus [9]

Answer:

D, high in iron content

Explanation:

6 0

3 years ago

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Copper has an atomic number of 29 that means there are 29 protons in the nucleus of each copper atom that's what the atomic numb

Aliun [14]

29 electrons assuming no other charges

6 0

3 years ago