A substance is followed by the symbol (/) in a chemical equation. What does the symbol represent?
OA.
The substance has the least molecules in the equation.
OB.
The substance is in the liquid state.
O c. The substance is produced last in the reaction.
OD.
The substance is dissolved in a liquid solution.
E.
The substance is lost at the end of the reaction.

The closer the atoms are to becoming ionic the more highly dense the negatively charged side gets.

It must be measured in k.hope my answer is to you : )

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.