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
weeeeeb [17]
3 years ago
14

What role does the salt bridge play in voltaic cell

Chemistry
2 answers:
kompoz [17]3 years ago
4 0
It provides the electric current, i.e. the positive and negative charges across the cell
Blababa [14]3 years ago
4 0

Answer:

It allows migration of ions from one half–cell to the other.

Explanation:

You might be interested in
If 400 Joules of work is done in 20 seconds, how much power was generated?
Sonbull [250]
To work this out you do 400÷20=20
5 0
3 years ago
A sample of gas occupies 10.0 L at 240°C under a pressure of
NISA [10]

Answer: 1090°C

Explanation: According to combined gas laws

(P1 × V1) ÷ T1 = (P2 × V2) ÷ T2

where P1 = initial pressure of gas = 80.0 kPa

V1 = initial volume of gas = 10.0 L

T1 = initial temperature of gas = 240 °C = (240 + 273) K = 513 K

P2 = final pressure of gas = 107 kPa

V2 = final volume of gas = 20.0 L

T2 = final temperature of gas

Substituting the values,

(80.0 kPa × 10.0 L) ÷ (513 K) = (107 kPa × 20.0 L) ÷ T2

T2 = 513 K × (107 kPa ÷80.0 kPa) × (20.0 L ÷ 10.0 L)

T2 = 513 K × (1.3375) × (2)

T2 = 1372.275 K

T2 = (1372.275 - 273) °C

T2 = 1099 °C

8 0
3 years ago
Read 2 more answers
When a fixed amount of gas has its Kelvin temperature and pressure doubled, the new volume of the gas is
dezoksy [38]
The answer is c. unchanged........

7 0
3 years ago
How many reactant molecules and product gas molecules are in this equation?
Mice21 [21]

Answer:

N₂  = 6.022 × 10²³ molecules

H₂ = 18.066 × 10²³ molecules

NH₃ = 12.044 × 10²³ molecules

Explanation:

Chemical equation;

N₂ + 3H₂     →  2NH₃

It can be seen that there are one mole of nitrogen three mole of hydrogen and two moles of ammonia are present in this equation. The number of molecules of reactant and product would be calculated by using Avogadro number.

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

Number of molecules of nitrogen gas:

1 mol = 6.022 × 10²³ molecules

Number of molecules of hydrogen:

3 mol × 6.022 × 10²³ molecules/ 1 mol

18.066 × 10²³ molecules

Number of molecules of ammonia:

2 mol × 6.022 × 10²³ molecules/ 1 mol

12.044 × 10²³ molecules

6 0
3 years ago
Which of the following are elements in this equation:
Anit [1.1K]

Answer:

calcium they are basically group 1,2,3 elements

4 0
3 years ago
Other questions:
  • Which atomic model proposed that electrons move in specific orbits around the nucleus of an atom?
    8·2 answers
  • Which is an example of a mixture made of parts that can easily be separated?
    14·2 answers
  • what is the substance called,that reaches Earthes surface and is made up of molten rock ,gasses and minerals
    9·2 answers
  • 1.Which has a larger radius Ca atom or Ca+2 ion?
    6·1 answer
  • Highly reactive organic molecules
    14·1 answer
  • What are the products of the reaction with their coefficients C2H18+O2?
    14·1 answer
  • What is an energy conserved system ?
    12·1 answer
  • What best describes the physical property of solubility?
    12·2 answers
  • Plsssssssssssssssssssssss herlppppppppppppppppppppppppp meeeee
    6·1 answer
  • Why is copper used to make hot water tanks not steel.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!