Write the symbol for sulfur. What is the .atomic number of it in the periodic ta

Question

Write the symbol for sulfur. What is the .atomic number of it in the periodic table? How many protons and electrons are there in the atom of sulfur? Give the highest possible and lowest possible oxidation state for sulfur. Determine it's molar mass. Na_2SO_4. Determine the molar mass for this compound and the oxidation stale of sulfur in it. Write the oxide formula of sulfur for the corresponding oxidation state. Determine whether this oxide will react with HCl. NaOH, and write the corresponding reaction equations. Name these compounds: K_2SO_4. NiS. NaNO_2.

Explanation / Answer

1.

sulphur:

symbol: S

atomic number= 16

number of protons= no. of electrons= 8

molar mass= 32.065 g

highest oxidation state= -2

lowest= +6

2.

Na2SO4:

molar mass= 142.04 g

oxidation state= +6

oxide: SO42-

reaction with NaOH:

2 NaOH + H2SO4 = Na2SO4 + 2 H2O

it doesnt react with HCl

3.

K2SO4 : potassium sulphate

NiS: nickle sulphide

NaNO2: sodium nitrite

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