The most abundant elements by mass in the body of a healthy human adult are : Oxygen (61.4 %): Carbon (22.9 %): Hydrogen (10.0 %) and Nitrogen (2.6 %). The weight which a 75 g person would gain if all ""^(1)H atoms are replaced by ""^(2)H atoms is .....

The most abundant elements by mass in the body of a healthy human adul

1.	The most abundant elements by mass in the body of a healthy human adult are : Oxygen (61.4 %): Carbon (22.9 %): Hydrogen (10.0 %) and Nitrogen (2.6 %). The weight which a 75 g person would gain if all ""^(1)H atoms are replaced by ""^(2)H atoms is .....
Answer» 15 KG 37.5 kg 7.5 kg 10 kg Solution :Weight will be DOUBLE, if all the hydrogen is REPLACED by` ""^(2)H`. 7.5 kg will increase because person having 75 kg weight has 10% hydrogen .