How many moles are there in 200 grams of carbon dioxide Please show work

N = m/M
= 200g/(12.01g/mol + 2(16.00g/mol))
=4.54mol

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom