Brümhildé is a graduate student conducting laboratory work for her mentor professor. Currently she is doing gas experimentations and has created 1.22 mol of XeF. How many moles of xenon were needed to produce this amount? ___Xe+___F2– ___XeF4

Can someone me with questions 15 to 17 plz.

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o