1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DiKsa [7]
3 years ago
7

Rafa places some copper into a solution of sodium chloride. No reaction takes place. Using the displacement theory, explain why

no reaction took place?
Chemistry
1 answer:
Charra [1.4K]3 years ago
5 0

Na more reactive than Cu

<h3>Further explanation</h3>

Given

Copper in a solution of NaCl

Required

The displacement theory

Solution

A single replacement reaction is a chemical reaction in which one element replaces the other elements of a compound to produce new elements and compounds

Not all of these reactions can occur. We can use the activity series, which is a list of elements that can replace other elements below / to the right of them in a single replacement reaction.

The voltaic series:  

<em>Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe²⁺-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Fe³⁺-Ag-Pt-Au  </em>

The electrode which is easier to reduce than the hydrogen (H2) electrode has a positive sign (E red= +) and is located to the right of the voltaic series (right of H)  

The electrode which is easier to oxidize than the hydrogen (H2) electrode and is difficult to experience reduction has a negative sign (E red= -) and is located to the left of the voltaic series (left of H)

Reaction

Cu + NaCl≠

The existing copper element can not replace the sodium element, which is on the left side so the reaction will not occur.

But if it is reversed, then a reaction can occur

2 Na + CuCl2 → Cu + 2 NaCl

You might be interested in
Which has a higher boiling point? please help!​
san4es73 [151]
First choice: PhH4 has a lower boiling point
Second: SiF4 higher
Third: CBr4 higher

4 0
3 years ago
What is the chemical formula for ammonium oxalate
prohojiy [21]
The chemical formula for ammonium oxalate is C2H8N2O4
6 0
3 years ago
A 50.0 g sample of scandium, sc, is heated by exposure to 1.50 x 10 3 j. The temperature of the sc is raised by 61.1 o
statuscvo [17]

Given mass of Scandium = 50.0 g

Increase in temperature of the metal when heated = 61.1^{0}C

Heat absorbed by Scandium = 1.50*10^{3}J

The equation showing the relationship between heat, mass, specific heat and temperature change:

Q = m C (deltaT)

Where Q is heat = 1.50*10^{3}J

m is mass = 50.0 g

ΔT = 61.1^{0}C

On plugging in the values and solving for C(specific heat) we get,

1.50*10^{3}J=50.0g(C)(61.1^{0}C)

C = 0.491\frac{J}{g^{0}C }

Specific heat of the metal = 0.491\frac{J}{g^{0}C }

7 0
3 years ago
Attempt 1 of 1
Fittoniya [83]
I’m not 100% positive but quartz would make sense
5 0
3 years ago
Read 2 more answers
Calculate the concentration of each species in a 0.240 m c6h5nh3cl solution.
amm1812
The solution for this problem is:
C6H5NH3Cl is a strong salt: C6H5NH3+ + Cl- C6H5NH3+ + H2O <-----> C6H5NH2 + H3O+ 
K = Kw/ Kb= 1.0 x 10^-14 / 3.8 x 10^-10= 2.6 x 10^-5 

=2.6 x 10^-5 = x^2 / 0.240-x 
x = [H3O+] = 0.00251 M 
pH = 2.60 is the concentration
8 0
3 years ago
Other questions:
  • A rigid stainless steel chamber contains 180 Torr of methane, CH 4 , and excess oxygen, O 2 , at 160.0 °C. A spark is ignited in
    6·1 answer
  • The rate law for the reaction
    12·1 answer
  • The pressure is recorded as 738 mmHg.Convert this measurement to atmosphere (atm)
    7·1 answer
  • Sulfuric acid was once produced through the reaction of sulfur trioxide with water. Sulfur trioxide can form through the reactio
    7·2 answers
  • The equilibrium 2NO(g)+Cl2(g)⇌2NOCl(g) is established at 500 K. An equilibrium mixture of the three gases has partial pressures
    10·1 answer
  • Sand is more likely than shale to preserve fossils. True False
    8·2 answers
  • Which of the following is NOT a "big idea" in chemistry?
    10·1 answer
  • A sample of gas occurs 9.0mL at a pressure of 500mmHg. A new volume of the same sample is at 750mmHg. Use two significant figure
    12·1 answer
  • People mine zinc metal for use as an anticorrosive, skin protectant, and in electrical components. Zinc mining involves using ch
    15·2 answers
  • Minerals transferred the same amont of energy into both minerals. Why did one mineral change and the other stayed the same?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!