Calculate the theoretical yield of iron(iii) oxide expected for this reaction if 0.50 mol of iron is reacted with excess oxygen
4fe + 3o2 yielding 2fe2o3
answer choices
.25 mol
.50 mol
.75 mol
1.0 mol

Calculate the number of molecules present in 0.750 mol of mgo.

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false