What is the percent composition of oxygen in Iron(III) oxide? (Round to three sig figs) Fe2O3 159.7g/mol
Fe =55.85 x 2 =111.7 g/mol
O = 16.00 x 3 = 48.00 g/mol

_% O

How many joules of heat are absorbed to raise the temperature of 650 grams of water from 5.00c to it's boiling point, 100c

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

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