The combustion of ethane ( C 2 H 6 ) produces carbon dioxide and steam. 2 C 2 H 6 ( g ) + 7 O 2 ( g ) ⟶ 4 CO 2 ( g ) + 6 H 2 O ( g ) How many moles of CO 2 are produced when 5.85 mol of ethane is burned in an excess of oxygen?

Twice as much... => 11.9 mole CO₂

Explanation:

From balanced equation ...

2 moles C₂H₆ => 4 moles CO₂ then

5.95 moles C₂H₆ => 2(5.95) moles CO₂ = 11.9 mole CO₂

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

if you mean hydrogen and oxygen then water is the product