Question

#10
and

#8 From the list of elements Li, Ca, Fe, Al, Cl, O,C and N write the formula and name of a compound that fits each of the following descriptions

(a) An ionic compound with the formula MX2, Where M is an alkaline earth metal and X is a non metal

(b) A molecular substance with the formula AB2, where A is a group IVA element and B is a group VIA element

(c) A compound with the formula M2X3, where M is a transition metal and X is a non metal

The most intense p 10. Calculate the average atomic mass and identify the element mass spectrum is assigned a height of 100 units. The following spectrum was obtained of an element Intensity Mass 180 182 183 184 186 0.39 85.67 46.51 100 93.16