What is a molecule?
Q: What is a molecule?
A: A molecule is the smallest amount of a chemical substance that can exist. It is made up of atoms that are stuck together in a particular shape or form.
Q: How many bonds do oxygen, carbon and nitrogen atoms have?
A: Oxygen atoms always have two bonds with other atoms, carbon atoms always have four bonds with other atoms, and nitrogen atoms always have three bonds with other atoms.
Q: What does the kinetic theory of gases state about molecules?
A: According to the kinetic theory of gases, the term molecule is often used for any gaseous particle regardless of its composition. This means that noble gas atoms are considered molecules as they are in fact monoatomic molecules.
Q: How do molecules behave in different states?
A: In gases like air, the molecules are just flying around. In liquids like water, the molecules are stuck together but they can still move. In solids like sugar, the molecules can only vibrate. In plasma (the fourth state of matter), the atoms are ionized and cannot form molecules.
Q: What is a molecular formula?
A: A molecular formula is used to write down the numbers of all atoms in a molecule. For example, C6H12O6 indicates one molecule of glucose which is made up of six carbon atoms, twelve hydrogen atoms and six oxygen atoms.
