What mass of propane is necessary to react with the amount of oxygen calculated in the previous question

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)

Once similarity and one difference between a mixture of elements and a mixture of compounds