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
blagie [28]
2 years ago
7

Silicon is a semi-conductor of electricity. explain​

Chemistry
1 answer:
sertanlavr [38]2 years ago
7 0

Answer:

A silicon atom has 14 electrons around the nucleus, and of these, there are 4 valence electrons on the outermost orbital. When this is made into a single crystal, it can be used as a material for semiconductor products. When it crystalizes, the nuclei share electrons and they bond with 8 electrons around each nucleus.

You might be interested in
Why are some examples of a chemical reaction not actually foolproof evidence that of a chemical reaction?13, 8th grade, and I'm
kvasek [131]
So basically, the change in color effects the amount of cations in the solution making it a physical change rather than a chemical one, defying the law of conservation of mass! I hope this helped! (The only time the change in color affects the amount of cations is in the Alkaline Earth Metals)

source: college science teacher 
7 0
3 years ago
What do the 14th Amendment and the Civil Rights Act of 1866 have in common?A. They were ways Congress sought to guarantee blacks
ehidna [41]
A. They were ways Congress sought to guarantee blacks the full rights of citizenship.
8 0
3 years ago
How many moles of water are formed when 22 mol of methane combusts?
icang [17]
Methane is a hydrocarbon which when burns in air (combustion) produces carbon dioxide and water. The equation for the reaction;
CH4 +2O2 = CO2 +2H2O
When one mole of methane combusts 2 moles of water are formed
Therefore; when 22 moles of methane combusts 44 moles of water are formed (22 ×2)
7 0
3 years ago
In ____________ reactions, certain molecules are broken down; in the process they release energy which is captured when high-ene
Rudik [331]

Answer:

Exergonic ,Endergonic,low concentration area,high

Explanation:

In exergonic reaction,certain molecules are broken down;in the process they release energy which is captured when high energy molecules(such as ATP and NADH) are formed.

                          The breakdown of these molecules can be coupled to thermodynamically unfavorable processes such as Endergonic reactions or pumping og hydrogen ion from low concentration areas to high concentration areas.

3 0
2 years ago
Stoichiometry: Calculate the moles of H2 produced by .042 g Mg in the equation Mg + 2HCl > MgCl2 + H2
Evgesh-ka [11]

Answer:

<em>Mg </em>(<em>s</em>) + 2<em>HCI2 </em>(<em>aq</em>) → <em>MgCI2 </em>(<em>aq</em>) + <em>H2 </em>(<em>g</em>)

I think this is the correct answer I not a 100% sure if it is correct.

Explanation:

Guessing

6 0
3 years ago
Other questions:
  • The strongest bases are hydroxides
    6·2 answers
  • What are atoms made of
    8·2 answers
  • What information on the periodic table is used to complete electron dot diagrams? The number before the A at the top of a column
    12·2 answers
  • How many grams of potassium chloride are required to make 250 ml of a 0.75 m kcl solution?
    13·1 answer
  • I need a quick history on the element oxygen plz keep it simple but detailed
    11·1 answer
  • Which of the following correctly describes the importance of the carbon cycle? to recycle oxygen-based compounds to replenish ni
    7·2 answers
  • PLEASEEE HELP NOW!!! 60 BRAINLIEST!!
    7·2 answers
  • When Jeremy returned home after vacation, he noticed that his new plant had not grown. His mother, a florist, told him that it w
    13·2 answers
  • How many moles are in 0.0723 atoms of Iron. Fe?-
    10·1 answer
  • A single bond represents 4 electrons.<br> True<br> O False
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!