Question
The chemical formula of tetraphosphorus heptoxide is:
- F₄O₁₀
- P₄O7
- PO
- P₁₀O₄
Hint:
The prefix -tetra which means four and -hept means seven.
The correct answer is: P₄O7
- The subscript of the chemical formula is the prefix in the chemical name.
- In the name phosphorus has prefix -tetra which means four and oxygen has prefix -hept means seven.
- The chemical formula is P4O7.
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What is the chemical formula for Tetrasulfur pentoxide?
An inorganic substance with the formula S4N4 is tetrasulfur tetranitride. The most significant binary sulfur nitride—compounds containing sulfur and nitrogen —is this solid with a golden-poppies hue. Due to its unusual structure and bonding, it is a precursor to many S-N compounds.
¶To air, S4N4 is stable. However, it is unstable in the thermodynamic sense with a positive enthalpy of formation of +460 kJ/mol. The difference in energy between S4N4 and its extremely stable breakdown products is what causes this endothermic enthalpy of formation:
¶2 S4N4 → 4 N2 + S8
¶Metal complexes and S4N4 react. Therefore, in some instances, the cage is still in good condition, but not in others.
What is the chemical formula for Tetrasulfur pentoxide?
An inorganic substance with the formula S4N4 is tetrasulfur tetranitride. The most significant binary sulfur nitride—compounds containing sulfur and nitrogen —is this solid with a golden-poppies hue. Due to its unusual structure and bonding, it is a precursor to many S-N compounds.
¶To air, S4N4 is stable. However, it is unstable in the thermodynamic sense with a positive enthalpy of formation of +460 kJ/mol. The difference in energy between S4N4 and its extremely stable breakdown products is what causes this endothermic enthalpy of formation:
¶2 S4N4 → 4 N2 + S8
¶Metal complexes and S4N4 react. Therefore, in some instances, the cage is still in good condition, but not in others.
