What is the limiting reactant if you reacted 20.00 g of MgF(2) with 20.00 g of Li If this helps :

These are the molar masses for each :

MgF(2) = 62.3g/mol
Li = 6.9g/mol
Mg = 24.3g/mol
LiF = 25.9g/mol

Main question :

MgF(2) + 2 Li —> Mg + 2 LiF

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.