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
Anettt [7]
3 years ago
11

Metals have the ability to conduct electricity more effectively than other materials, such as ionic and covalent substances. Thi

s is because the way metals bond -
Chemistry
1 answer:
Aneli [31]3 years ago
6 0

Answer:

See explanation

Explanation:

Substances are composed of bands. A band is a group of molecular orbitals, the energy differences between them are so small that the system behaves as if a continuous, non-quantization of energy within the barrier is possible.

Materials consists of a valence band and a conduction band separated by a band gap. A band gap occurs when the energy difference between two bands is significant.

The magnitude of band gap determines whether a material will be a metal, nonmetal or metalloid.

Metals have a very little band gap hence they are able to conduct electricity more effectively than other materials, such as ionic and covalent substances.

You might be interested in
Assertion (A): Naphthalene balls disappear with time without leaving any solid.
gogolik [260]

Explanation:

a) Both A and R are true and R is the correct

explanation of A.

7 0
2 years ago
Read 2 more answers
The penguin has a ___ body that helps it to move quickly in water.
Lerok [7]
The penguin has a sleek body that helps it to move quickly in water.
7 0
3 years ago
Read 2 more answers
The concentration of a biomolecule inside a rod‑shaped prokaryotic cell is 0.0035 M . Calculate the number of molecules inside t
timama [110]

Answer: This rod-shape prokaryotic cell has 3.740,734725‬ molecules

Explanation:

<u>Step 1 :</u> given data

Molarity of the prokaryotic cell = 0.0035 M

Length of the cell = 4.2 μm = 4.2 * 10^-6 m

diameter of the cell = 1.3 μm = 1.3 * 10^-6 m

<u>Step 2: </u>calculate volume

To calculate volume of a rod, weneef to know the radius.

V = r ² × l

The radius = half of the diameter : r = d/2 ⇒ (1.3 * 10^-6 m)/2 = 0.65 * 10^-6 m

V= (0.65 * 10^-6 m)² * 4.2 * 10^-6 m = 1.7745 * 10 ^-18 L

<u>Step 3:</u> Calculating number of moles

Number of moles = Concentration * Volume

moles = 0.0035 M * 1.7745 * 10 ^-18 L = 6.21075 * 10^-21 moles‬

<u>Step 4:</u> calculating number of molecules

1 mole contains 6.023 * 10 ^-23 molecules

6.21075 * 10^-21 moles contain : 6.21075 * 10^-21 * 6.023 * 10 ^-23 molecules = 3.740,734725‬ molecules

This rod-shape prokaryotic cell has 3.740,734725‬ molecules

4 0
3 years ago
Did they scientist believe in God
Nataliya [291]

Answer:

some of them not believe in God

6 0
3 years ago
Chemistry gcse
mart [117]
Yes, anything with carbonate, hydrogen carbonate (bicarbonate) at the end is a carbonate.

Examples:NaHCO3 (Sodium hydrogen carbonate or Sodium bicarbonate)Na2CO3 (Sodium carbonate)
8 0
3 years ago
Other questions:
  • What’s the relationship between homozygous and pure?
    10·1 answer
  • Convection is the up and down movement of what?
    14·1 answer
  • Which is the best example of how electromagnetic energy is used in everyday life?
    12·1 answer
  • How many nitrogen atoms are in 2.79 mo.of NH3
    12·1 answer
  • A mixture of three noble gases has a total pressure of 1.25 atm. The individual pressures exerted by neon and argon are 0.68
    8·2 answers
  • What is the molar mass of Al2(SO4)3
    5·2 answers
  • What is the SI unit of mass
    9·2 answers
  • Compound formula: MgCl2
    14·2 answers
  • Write the symbol for every chemical element that has atomic number less than 13 and atomic mass greater than 17.2 u.
    7·1 answer
  • How many moles of na contain 7.88x1021 atoms of na
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!