Essay Database

Chemistry Definitions Matter: matter never changes wherever you are Mass: the amount of matter that occupies something, changes with different gravitational pull. Physical change: A change that can be reversed, no new substance is created. The product may change shape but won't change state. Chemical Change: A brand new product is formed e.g. gas bubbles, endothermic / exothermic reactions, colour change, and state change, etc... Volume: The amount of space occupied by a three-dimensional object …

…consisting of a liquid dispersed with or without an emulsifier in an immiscible liquid usually in droplets of larger than colloidal size Solvent / Solute: Solute: a dissolved substance Solvent: that dissolves or can dissolve Alloy: the degree of mixture with base metals Soluble / Insoluble: Soluble: susceptible of being dissolved in or as if in a liquid and especially water Insoluble: incapable of being dissolved in a liquid Catalyst: Something like heat that quickens a reaction.