3. Write the balanced nuclear equation showing the decay of protactinium-238 to uranium-238.

If 90.0 grams of ethane reacted with excess chlorine, how many grams of dicarbon hexachloride would form

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent