A rock sample composed of a compound made of iron and sulfur Has a mass of 125.67g. Analysis of the rock finds 66.98 g of fe, calculate the mass of the sulfur, calculate the percentage of Fe in the sample , what is the percentage of S in the sample

What is the theoretical yield of carbon dioxide? a)0.993 gb)2.98 gc)3.65 gd)8.93 g

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.