Question
Ans 1 - The inspector is not in the town. He was written to another place some days ago.
Ans 2 - In 1969 two manned spaceships were launched into space from the first space station
Ans 3 - We can’t get there in time. By the time we get there the papers will have been destroyed.
Ans 4 - This school will be closed next year.
Ans 5 - A lot of books by this writer have been translated into many languages of the world.
Ans 6 - The great English scientist Isaac Newton was born not far from Cambridge.
Ans 7 - May Day is celebrated in Great Britain with singing and dancing round a Maypole.
Ans 8 - He ate everything that was left on the table.
Ans 9 - He made a rush at the door without realizing it had been locked by me earlier.
Ans 10- An award is being presented now.
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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.
