The most abundant chemical substance in the human body is water. There are a lot of H2O molecules throughout the human body.
Mind is the second most abundant substance in the human body
The human body is made up mostly of water.
protein
Human growth is a chemical change because the organs inside your body react with a substance (I don't know what substance, but I know it reacts with somthing in your body) in your body
Neither - a human is not a physical or chemical change. A human is a type of living multicellular organism.A physical change is a process where the actual molecules and atoms of a substance do not change, but appearance will change.A chemical change is a process where the actual molecules and atoms of a substance change, usually along with the appearance.
This substance is water, H2O.
Mind is the second most abundant substance in the human body
Water
The human body is made up mostly of water.
H2O or water!
Water is the most common molecular subsance found in the human body(~98%). and phosphorous is the most abundant element in human body.
carbon
protein
The question is flawed. Substance can mean element or molecule. I'll go with molecule since organic simply means carbon atoms are present. Hydrogen dioxide is the most abundant inorganic "substance".
Human growth is a chemical change because the organs inside your body react with a substance (I don't know what substance, but I know it reacts with somthing in your body) in your body
Protein.
According to Marieb, 8th edition, "Electrolytes are the most abundant solutes in body fluids and determine most of their chemical and physical reactions"