click below
click below
Normal Size Small Size show me how
LCM Vocabulary
Question | Answer |
---|---|
Atom | The basic unit of a chemical element. |
Chemical Bond | A restraint used to hold atoms together. |
Chemical Change | A result of a formation of a new substance. |
Chemical Formula | A formula used to detect ratio of elements. |
Chemical Property | An essential attribute shared by atomic particles. |
Element | A substance composed of atoms having identical number of protons in the nucleus. |
Law of Conservation of Mass | The principal that matter can neither be created nor destroyed. |
Matter | Something that takes up space and has mass. |
Molecule | The smallest particle of a substance. |
Oxidation Number | The degree of oxidation of an atom, ion, or molecule. |
Physical Change | The withdrawal of heat to change something from a solid to a liquid to a gas. |
Stable | Not subject to extreme change or fluctuation. |
Valence Electrons | An electron in an outer shell of an atom that forms chemical bonds. |
Compound | When two elements combine. |
Pure Substances | Material produced by or used in a reaction involving changes in atoms or molecules. |
Endothermic Change | When a reaction proceeds, it absorbs energy. |
Exothermic Change | When a reaction proceeds, it releases energy. |
Product | A substance produced during a natural, chemical, or manufacturing process. |
Reactant | A substance that takes part in and undergoes change in a reaction. |
Synthesis | Combination or composition. |