How do you make these equations balanced?

Chemistry

1 answer:

Sedaia [141]2 years ago

3 0

Explanation:

both iron and sulphur in FeS2 undergo a change in oxidation state.

O2° -->2O degree2- Total decrease = 2×2=4

So, 4FeS2+11O2 --> 2Fe2O3+8 SO2

Hence, balanced

You might be interested in

Give the o.N. Of each of the elements magnesium and oxygen in the reactants and in the products 2Mg + O2=2MgO

vlada-n [284]

Answer:

$2Mg^0 + O_2^0\rightarrow2Mg^{2+}O^{2-}$

Explanation:

Hello there!

In this case, according to the rules for the oxidation states in chemical reactions, it is possible to realize that lone elements have 0 and since magnesium is in group 2A, it forms the cation Mg⁺² as it loses electrons and oxygen is in group 6A so it forms the anion O⁻²; therefore resulting oxidation numbers are:

$2Mg^0 + O_2^0\rightarrow2Mg^{2+}O^{2-}$

Best regards!

4 0

2 years ago

During natural selection, which organisms are most likely to survive as the environment changes?

ANEK [815]

Are there any choices to your question? If so what are they? Then I can answer. :)

4 0

3 years ago

On the diagram above, trace the path of a light ray through these materials

makvit [3.9K]

We need the diagram to answer the question

4 0

3 years ago

PLEASE HELP ME !!!!!!

Leviafan [203]

Answer: b

Explanation:

By adding heat you are adding more energy

5 0

3 years ago

Read 2 more answers

When an electron is displaced in a semi conductor, the hole that’s left behind is?

lisov135 [29]

Explanation:

holes are left due to space left out the migrating electrons. they are positive charge carriers. if the electron moves in one direction, the holes appear to move in the opposite direction.

6 0

3 years ago