Final answer:
An element is a pure substance consisting of only one type of atom, while a compound is made up of two or more elements chemically bonded together. A molecule is a group of two or more atoms held together by chemical bonds. Chemical bonds are the forces of attraction between atoms that allow them to form molecules or compounds. Mixtures are combinations of substances that are physically mixed together, and substances encompass all forms of matter.
Step-by-step explanation:
An element is a pure substance that consists of only one type of atom. For example, oxygen (O), hydrogen (H), and carbon (C) are elements.
An atom is the smallest unit of an element that retains the properties of that element. It consists of a nucleus containing protons and neutrons, with electrons orbiting around the nucleus.
A molecule is a group of two or more atoms held together by chemical bonds. It can be an element if it contains only one type of atom, such as oxygen molecules (O2) or it can be a compound if it contains different types of atoms, such as water (H2O).
A chemical bond is a force of attraction between atoms that allows them to bind together and form molecules or compounds. There are different types of chemical bonds, including ionic bonds, covalent bonds, and hydrogen bonds.
A compound is a substance composed of two or more elements chemically bonded together. For example, carbon dioxide (CO2) is a compound made up of carbon and oxygen atoms.
A mixture is a combination of two or more substances that are physically mixed together but not chemically bonded. The substances in a mixture retain their individual properties and can be separated through physical means. For example, trail mix is a mixture of nuts, raisins, and chocolate chips.
A substance is a general term for any type of matter, including elements, compounds, and mixtures. It refers to a material with a definite composition and distinct properties.