All categories

4 years ago

How much is the chemotherapy in FeS2?explain

Chemistry

2 answers:

SVETLANKA909090 [29]4 years ago

6 0

Answer:

Valence of iron in FeS2

Let the valency of iron be x

x+2(oxidation number of Sulphur)=0 as their is no charge on FeS2

As sulphur belongs to Group VI (chalcogens) so the valency/oxidation number of Sulphur is -2

x+2(-2)=0

x-4=0

x=4

So the valency/oxidation number of iron in FeS2 is +4

Explanation:

Hope it will help you monkey ^_^ it's crab

Olin [163]4 years ago

4 0

Answer:

Hope you are better now your parents must be worried about you get well soon drink plenty of milk it will make your bones strong.

NOW TIME FOR WISHES ^_^

You might be interested in

What is the boiling point of gold 1064.43°C 2970°C 1313°C 3266°C

Vikentia [17]

Answer:

The melting point of Gold is 1064.43 degrees celsius and the boiling point is 2807 degrees celsius.

8 0

4 years ago

Read 2 more answers

Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g) At 25°C, for this reaction,

insens350 [35]

Answer:

401.17 K is the minimum temperature at which the reaction will become spontaneous under standard state conditions.

Explanation:

The expression for the standard change in free energy is:

$\Delta G=\Delta H-T\times \Delta S$

Where,

$\Delta G$ is the change in the Gibbs free energy.

T is the absolute temperature. (T in kelvins)

$\Delta H$ is the enthalpy change of the reaction.

$\Delta S$ is the change in entropy.

Given at:-

Temperature = 25.0 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T₁ = (25.0 + 273.15) K = 298.15 K

$\Delta H$ = 128.9 kJ/mol

$\Delta G$ = 33.1 kJ/mol

Applying in the above equation, we get as:-

$33.1=128.9-298.15\times \Delta S$

$-29815\Delta S=-9580$

$\Delta S=-9580$ = 0.32131 kJ/Kmol

So, For reaction to be spontaneous, $\Delta G$

Thus, For minimum temperature:-

$\Delta H-T\times \Delta S=0$

$128.9-T\times 0.32131=0$

$T=\frac{128.9}{0.32131}=401.17\ K$

Hence, 401.17 K is the minimum temperature at which the reaction will become spontaneous under standard state conditions.

6 0

3 years ago

The invisible force that surrounds a magnet is called the ________

Sladkaya [172]

Magnetic field
happy to help

8 0

3 years ago

Hi can someone hellp this is grade 7

saw5 [17]

Explanation:

option B kinetic energy

hope this helps you!

3 0

2 years ago

Read 2 more answers

The company's chief financial officer recognizes the need for an upgrade to the smart watches but does not understand why the bu

goldenfox [79]

Answer:

how about you just put whats on your mind and continue on

Explanation:

no need to ask this question just answer it and move on or you will lose your sanity trying to figure this out

7 0

3 years ago

Read 2 more answers