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sasho [114]
3 years ago
5

Where does most the candles light come from​

Chemistry
2 answers:
Mashutka [201]3 years ago
7 0

Answer:

All the light a candle makes comes from a chemical reaction known as combustion in which the wax (made from carbon-based chemicals typically derived from petroleum) reacts with oxygen in the air to make a colorless gas called carbon dioxide. Water is also produced in the form of steam.

Explanation:

Hope this helps :)

cupoosta [38]3 years ago
4 0

Answer:

It comes from the chemical reaction of The wax and the gas because the wax is made up of carbon-based chemicals so the gas and carbon make the candle light =)

Explanation:

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Many computer chips are manufactured from silicon, which occurs in nature as SiO2. When SiO2 is heated to melting, it reacts wit
riadik2000 [5.3K]

Answer:

A) SiO2 is the limiting reactant

B) Theoretical yield= 72333.3g

C) % yield =91.5%

Explanation:

SiO2(s) + 2C(s) --------------> Si(s) + 2CO(g)

n(SiO2)= 155000/60 = 2583.33 mols

n(C)= 79000/12= 3291.66 mols

a)SiO2 is the limiting reactant

According to the balanced reaction equation,

60g of SiO2 produced 28g of SiO2

155000g of SiO2 will produce 155000×28/60= 72333.3g

Therefore theoretical yield of Si= 72333.3g

% yield= 66200/72333.3×100/1 =91.5%

5 0
3 years ago
The symbol of the period five element that is a member of the pnicitides family
Zepler [3.9K]

The symbol of the period five element that is a member of the pnicitides family are antimony.

Explanation:

Pnictogen family

  • In periodic table, column 15 elements are Pnitogen family.
  • The pnictogen elements are Nitrogen-N, arsenic-As, phosphorus-P, bismuth-Bi, antimony-Sb, ununpentium-Uup.    
  • There are five valence electrons each member of pnictogen family. In group 15 double bonds and triple bonds are formed due to these valence electrons.  
  • Pnictides, binary compounds of  group 15.

Antimony  

  • Antimony is the element found in period 5 and block p.
  • A chemical element, Antimony (Sb) from Latin word stibium and 51 is its atomic number. It is in solid state.
  • In ancient times, antimony compounds are used as cosmetic and medicine.
  • Appeared as semi metal.  
  • Electronic configurations of Sb is [Kr] 4d105s25p3.

7 0
3 years ago
Write a balanced chemical equation for the reaction that occurs when calcium metal undergoes a combination reaction with O2(g)?
ivann1987 [24]
When calcium joins with calcium its follows the following equation:

2Ca + O2 = 2CaO

hope that helps 

8 0
3 years ago
Write a balanced equation for the following reaction:
tiny-mole [99]

Answer:

3AgCl + Na₃PO₄ —> 3NaCl + Ag₃PO₄

The coefficients are 3, 1, 3, 1

Explanation:

From the question given above, the following data were:

Silver chloride reacts with sodium phosphate to yield sodium chloride and silver phosphate. This can be written as follow:

AgCl + Na₃PO₄ —> NaCl + Ag₃PO₄

The above equation can be balanced as follow:

AgCl + Na₃PO₄ —> NaCl + Ag₃PO₄

There are 3 atoms of Na on the left side and 1 atom on the right side. It can be balance by putting 3 in front of NaCl as shown below:

AgCl + Na₃PO₄ —> 3NaCl + Ag₃PO₄

There are 3 atoms of Cl on the right side and 1 atom on the left. It can be balance by putting 3 in front of AgCl as shown below:

3AgCl + Na₃PO₄ —> 3NaCl + Ag₃PO₄

Thus, the equation is balanced.

The coefficients are 3, 1, 3, 1

6 0
3 years ago
How would you know if this combination is likely to be found in dirt? Please explain!
Elan Coil [88]
No it is not likely. That is a ratio of 10:4 N^14 and N^15 which doesn’t work. It needs a higher amount
4 0
3 years ago
Read 2 more answers
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