Suppose some radon gas enters your home. The half-life of 222Rn is 3.8235 days. What percentage of the 222Rn gas would still be present 6 days later (assuming it is only dissipated through nuclear decay)? Report your answer in percentage to one decimal place.

Asolution of sodium hydroxide was titrated against a solution of sulfuric acid. how many moles of sodium hydroxide would react with 1 mole of sulfuric acid?

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

If a solution had a ph of 7 what is the solution