chloroplast
A substance called DNA (DeoxyriboNucleic Acid) contains the instructions for life.
pure substance
Mass decribes how much matter a substance contains and Mole decribes the quantity of matter contained in a substance.
An element is a pure substance that contains two or more electrons. There are many different elements known to man.
plants
A pure substance is one which contains only that substance and nothing else. An impure substance contains other substances in varying amounts.
The granum (stacked thylakiods) in a chloroplast.
A substance called DNA (DeoxyriboNucleic Acid) contains the instructions for life.
A substance that contains no acid.
A substance that contains only one type of atom is called an "element".
A single substance has one phase.
pure substance
The substance that contains hereditary material in living organisms is called DNA (deoxyribonucleic acid).
kyifyufyu
Seawater and fresh water contains oxygen that fish absorb using their gill. So the substance is oxygen.
Mass decribes how much matter a substance contains and Mole decribes the quantity of matter contained in a substance.
A substance that only contains one kind of atom is called an element.