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jek_recluse [69]
3 years ago
14

Which of the following is not a symbol used in chemical equations?

Chemistry
1 answer:
kkurt [141]3 years ago
5 0

Explanation:

The following representations are the symbols that are being used in chemical equations.

- All representations of elements in the periodic table

- (s)  solid state

- (g)  gaseous state

- (l)  liquid state

- (aq) aqueus solution

- ∆  indicates the application of heat

- →← Forward and Backward direction

- ⇄ Reversible reaction

Anything outside these symbols are not being used in chemical equations.

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What defining feature makes a material an insulator?
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The heat of vaporization of water at 100°c is 40.66 kj/mol. Calculate the quantity of heat that is absorbed/released when 9.00 g
timofeeve [1]

Answer:

20.3 kJ of heat is absorbed when 9.00 g of steam condenses to liquid water.

Explanation:

Heat is being consumed during vaporization and heat is being released during condensation.

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Molar mass of water = 18.02 g/mol

Hence, to vaporize 18.02 g of water , 40.66 kJ of heat is being consumed.

So, to vaporize 9.00 g of water, (\frac{40.66}{18.02}\times 9.00)kJ of heat or 20.3 kJ of heat is being consumed

As condensation is a reverse process of vaporization therefore 20.3 kJ of heat is absorbed when 9.00 g of steam condenses to liquid water.

5 0
3 years ago
What type of compound is formed when a secondary (2°) alcohol is treated with Jones' reagent?
EastWind [94]

Answer:

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Since Jones reagent (CrO3/H2SO4) is a strong oxidizing agent and oxidize the secondary alcohol to ketone.

Example , isopropanol gets oxidized to propanone.

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