Question

Валентность H3PO4Валентность Na2SO4Валентность Fe2So3

Answer 1

Вот , как то так.............

Answer 2

Valency, also known as oxidation state, is a measure of the number of electrons an atom can gain, lose, or share when forming chemical compounds. Here are the valencies for the given compounds:

1. H3PO4 (phosphoric acid):

   • The valency of hydrogen (H) is +1.
   • The valency of phosphorus (P) in H3PO4 is +5.
   • Oxygen (O) usually has a valency of -2, so there are four oxygen atoms in H3PO4 with a total valency of -8. Using these valencies, we can determine the overall valency of H3PO4: Valency of H3PO4 = 3 * (+1) + (+5) + 4 * (-2) = +1

2. Na2SO4 (sodium sulfate):

   • The valency of sodium (Na) is +1.
   • The valency of sulfur (S) in Na2SO4 is +6.
   • Oxygen (O) usually has a valency of -2, so there are four oxygen atoms in Na2SO4 with a total valency of -8. Using these valencies, we can determine the overall valency of Na2SO4: Valency of Na2SO4 = 2 * (+1) + (+6) + 4 * (-2) = 0

3. Fe2(SO3)3 (iron(III) sulfite):

   • The valency of iron (Fe) in Fe2(SO3)3 is +3.
   • The valency of sulfur (S) in sulfite (SO3) is +4.
   • Oxygen (O) usually has a valency of -2, so there are nine oxygen atoms in Fe2(SO3)3 with a total valency of -18. Using these valencies, we can determine the overall valency of Fe2(SO3)3: Valency of Fe2(SO3)3 = 2 * (+3) + 3 * (+4) + 9 * (-2) = -3

Please note that these valencies represent the typical oxidation states for the elements in the given compounds, but in some cases, they can vary depending on the specific chemical environment or reaction conditions.