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2 years ago

For the following questions state the oxidation number of the element in the given compound.

Chemistry

1 answer:

qaws [65]2 years ago

5 0

in the periodic tables

elements in the same column have the same charge

in a compound oxidation numbers have to equal 0

sulfur in Li2SO3

charges :

Li = +1 S = +4 O = -2

multiply the charge with the subscripted number next to the element

Li = +1

Li2 = +2

O = -2

O3 = -8

in a compound oxidation numbers have to equal 0

+2 S -6 = 0

S -4 = 0

S = +4

Sulfur = +4

MgCl2

Mg = +2

+2 Cl2 = 0

Cl2 = -2

Cl by itself = -2 divided by 2 = -1

Chlorine = -1

SiO2

Silicon = +4

Sulfur in H2SO4

H: +1 S: +6 O: -2

H2SO4

H2 : +2 O4: -8

+2 +S -8 = 0

S - 6 = 0

S = +6

Sulfur = +6

Sulfur in SO4^2-

Sulfur in SO4

Sulfur = +4

Manganese in MnO4^-

Manganese in MnO4

Manganese = +4

Cr2O7^2-

Dichromate

Cr in Cr2O7^2- or Cr2O7-2-

Cr: +6 O: -2

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ozzi

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2 years ago

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A research is also referred to a study and it can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause), in order to determine or measure the dependent variable (the effect) and reach a logical conclusion with results.

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2 years ago

How many moles of sulfur are present in 5 moles of h2so4?.

dusya [7]

Answer:

One mole of sulfuric acid consists of one mole of sulphur.

Explanation:

This is because in the molecule of sulfuric acid there is only one atom of sulphur that is present. As a result of this since in case of one mole of sulfuric acid there should be only one 1 mole of sulphur.

According to the molar concept one mole of sulphur means 6.023 x10^ 23 atoms of sulphur is present in one complete mole of sulfuric acid. in addition to this the molecule also consists of 2 moles of hydrogen and 4 moles of oxygen in 1 mole of sulfuric acid

to know more about sulfuric acid,

. Calculate the mass (in g) of 0.500 mol of sulfuric acid (H2SO4 ...

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