Determine the number of moles of oxygen atoms in each of the following:

2.02 mol N2O
2.28×10−2 mol H2CO3
23.8 mol CO2

The p sub shell can hold up to 8 electrons in an atom. true or false?

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5