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
Anna71 [15]
2 years ago
7

What is the relative mass of an electron? 1+ -1 2 0

Chemistry
2 answers:
SSSSS [86.1K]2 years ago
3 0
The answer to your question is -1
JulsSmile [24]2 years ago
3 0

Answer:

The relative mass of an electron would be -1.

You might be interested in
The equilibrium constant, Kc, is calculated using molar concentrations. For gaseous reactions another form of the equilibrium co
Anarel [89]

Answer:

Kp = 1.41 x 10⁻⁶

Explanation:

We have the chemical equation:

2 A(g) + 3 B(g)⇌ C(g)

In which A and B are the reactants and C is the product. We calculate first the change in the number of moles of gas (Δn or dn):

dn= (sum moles products - sum moles reactants)

   = (moles C - (moles A + moles B))

   = (1 - (2+3))

   = 1 - 5

   = -4

We have also the following data:

Kc = 63.2

T= 81∘C + 273 = 354 K

R = 0.082 L.atm/K.mol (it is a constant)

Thus, we introduce the data in the mathematical expression for the relation between Kp and Kc:

Kc = (RT)^{dn}= (0.082 L.atm/K.mol x 354 K)⁻⁴ = 1.41 x 10⁻⁶

3 0
2 years ago
Porfavor alguien que me explique los Cambios bioquimicos en los musculos ,sangre e higado durante los ejercicios fisicos y como
german

Answer:

hx see i own right to me I can send it it is not too good to be true that

Explanation:

iibhuuhhhucjdjdjrjnjxnxxhhhbbhhhhbhhbhhhet

8 0
3 years ago
Calculate the pH of an aqueous solution that is 0.020 M in HCl(aq) at 25°C.
sdas [7]
Hope this helps you!

7 0
2 years ago
Explain why chemical equations have to be balanced
vivado [14]
Chemical equations are to be balanced to be able to follow the law of conservation of mass where it says that mass cannot be created or destroyed. Reactions should be that the mass of the reactants is equal to the mass of the products. 
5 0
2 years ago
Read 2 more answers
Calculate for the following electrochemical cell at 25°C, Pt H2(g) (1.0 atm) H (0.010 M || Ag (0.020 M) Ag if E (H) - +0.000 V a
viva [34]

Answer : The correct option is, (b) +0.799 V

Solution :

The values of standard reduction electrode potential of the cell are:

E^0_{[H^{+}/H_2]}=+0.00V

E^0_{[Ag^{+}/Ag]}=+0.799V

From the cell representation we conclude that, the hydrogen (H) undergoes oxidation by loss of electrons and thus act as anode. Silver (Ag) undergoes reduction by gain of electrons and thus act as cathode.

The half reaction will be:

Reaction at anode (oxidation) : H_2\rightarrow 2H^{+}+2e^-    

Reaction at cathode (reduction) : Ag^{+}+1e^-\rightarrow Ag    

The balanced cell reaction will be,  

H_2+2Ag^{+}\rightarrow 2H^{+}+2Ag

Now we have to calculate the standard electrode potential of the cell.

E^o_{cell}=E^o_{cathode}-E^o_{anode}

E^o_{cell}=E^o_{[Ag^{+}/Ag]}-E^o_{[H^{+}/H_2]}

E^o_{cell}=(+0.799V)-(+0.00V)=+0.799V

Therefore, the standard cell potential will be +0.799 V

4 0
3 years ago
Other questions:
  • If the same amount of heat is added to 25.0 g of each of the metals, which are all at the same initial temperature, which metal
    9·1 answer
  • Draw the curved arrow mechanism to show the conversion of hex-1-ene and CH3CH2OH in acidic solution into 2-ethoxyhexane. Follow
    13·1 answer
  • Ionic compounds are electrically overall thereofre the sum of
    5·1 answer
  • A student wants to draw a model of an atom. Which statement describes how to find the number of neutrons to include in the model
    6·1 answer
  • If you lived in the Midwest, your best bet for a renewable energy source would be
    9·2 answers
  • 1. In class, students learned that a cart will move when a force of 50 N
    11·1 answer
  • How does the snake's skull allow it to eat large prey?
    14·1 answer
  • How many moles of calcium hydroxide are needed to produce 73.7 milliliters of water, if the density of water is 0.987 g/mL? Show
    9·1 answer
  • The Density of pure carbon in Diamond form is 3.52 g/cm^3. How many cubic inches would 23.7 moles of pure diamond occupy?
    12·1 answer
  • a sample of helium gas has a volume of 200.0 mL at 730mm Hg pressure. What pressure, in atm is needed to reduce the volume at a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!