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3 years ago

What happens to carbon when a candle burns

Chemistry

1 answer:

iren2701 [21]3 years ago

5 0

Answer:

carbon is depleted

Explanation:

it is because carbon does not support burning

You might be interested in

Whats the number of moles of O2(g) needed to completely react with 8 moles of CO(g).

slava [35]

A mole of CO2 = 2 moles of O2
8 CO moles x 2 =

16 moles

7 0

3 years ago

Urgent plzz help meeee thx I HAVE EXAMEEE

USPshnik [31]

Answer: $2Ag^{+}(aq)+CO_3^{2-}(aq)\rightarrow Ag_2CO_3(s)$

Explanation:

Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.

The given chemical equation is:

$2AgF(aq)+Na_2CO_3(aq)\rightarrow Ag_2CO_3(s)+2NaF(aq)$

The complete ionic equation is;

$2Ag^{+}(aq)+2F^-(aq)+2Na^+(aq)+CO_3^{2-}(aq)\rightarrow Ag_2CO_3(s)+2Na^+(aq)+2F^-(aq)$

The ions which are present on both the sides of the equation are $Na^+$ and $F^-$ and are not involved in net ionic equation.

Hence, the net ionic equation is :

$2Ag^{+}(aq)+CO_3^{2-}(aq)\rightarrow Ag_2CO_3(s)$

6 0

3 years ago

(9443+45−9.9) (9443+45−9.9) ×8.4× 10 6

ozzi

Booooooommmm!.................

6 0

4 years ago

The O2 molecule breaks apart at lower wavelengths than the O3 molecule. What is the main reason for this?

kozerog [31]

The main reason for this is Average bond of O₂ is shorter and strong from O₃.

<h3>What is ozone?</h3>

Ozone is a blue gas composed of three oxygen atoms bonded together.

It occurs naturally high up in the Earth's atmosphere, where it protects the surface from harmful ultraviolet (UV) rays,

UV radiation will dissociate ozone into an oxygen atom and an oxygen molecule.

Ozone molecules are tetrahedral so the bond angle is 109 degree the electrons in the double bond occupy more space that the non-bonding electron pair.

Oxygen has a small size that leads to smaller O-O bond length.

A lone pair of electrons on both the oxygen repel each other leading to weakening of O-O bond.

O3 has longer and weaker bonds than O2, whereas SO2 has shorter and stronger bonds than SO.

Molecular oxygen, O2, is photolyzed by light of 241 nm and has a bond energy of 498 kJ/mol.

The main reason for this is Average bond of O₂ is shorter and strong from O₃.

Learn more about ozone, Here:

brainly.com/question/27911475

#SPJ4

8 0

2 years ago

Dolomite is a carbonate of magnesium and calcium. Analysis shows that 7.81 g of dolomite contains 1.70 grams of Ca. Fluorite is

andrew11 [14]

Answer:

The richer source of calcium is fluorite.

Explanation:

Percentage of element in compound :

$=\frac{\text{mass of element}}{\text{Mass of compound}}\times 100$

1. Dolomite is a carbonate of magnesium and calcium:

Given mass of dolomite = 7.81 g

Mass of calcium present in given mass of dolomite = 1.70 g

Percentage of calcium in Dolomite:

$=\frac{1.70 g}{7.81 g}\times 100=21.77\%$

2. Fluorite is a mineral of calcium and fluorine:

Given mass of fluorite = 2.76 g

Mass of fluorine present in given mass of fluorite = 1.34 g

Percentage of fluorine in fluorite :

$=\frac{1.34 g}{2.76 g}\times 100=48.55\%$

Percentage of calcium in fluorite = 100% - 48.55 % = 51.45%

Percentage of calcium in fluorite > Percentage of calcium in Dolomite

51.455 > 21.77%

So, the richer source of calcium is fluorite.

7 0

3 years ago