1Kr + 3 F2 → 1KrF6 2. How many moles of fluorine are required to

produce 3.0 grams of KrFo?

0.045 moles of will be required to  produce 3.0 grams of  .

Explanation:

To calculate the moles :

The balanced chemical equation is:

According to stoichiometry :

1 mole of is produced by = 3 moles of

Thus 0.015 moles of will be produced by=  of

Thus 0.045 moles of will be required to  produce 3.0 grams of  .

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.