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starmandi

TermDefinition
matter is everything around you. Atoms and molecules are all composed of matte
states of matter is one of the distinct forms that matter takes on
solid It is characterized by structural rigidity and resistance to changes of shape or volume.
liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure
gas an airlike fluid substance which expands freely to fill any space available, irrespective of its quantity.
physical property is any property that is measurable whose value describes a state of a physical system
chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.
physical change is any change NOT involving a change in the substance's chemical identity.
phase change Water vapor turning to frost is an example of deposition. There are four states of matter in the universe: plasma, gas, liquid and solid. But matter on Earth exists mostly in three distinct phases: gas, liquid and solid. A phase is a distinctive form of a
chemical change is any change that results in the formation of new chemical substances
law of conservation of mass states that for any system closed to all transfers of matter and energy (both of which have mass), the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed.
mixture is a material system made up of two or more different substances which are mixed but are not combined chemically
heterogeneous mixture is a mixture that composes of components that aren't uniform or they have localized regions that all have different properties.
homogeneous mixture simply any mixture that is uniform in composition throughout.
solution is a homogeneous mixture composed of only one phase. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.
filtration the action or process of filtering something
distillation the action of purifying a liquid by a process of heating and cooling.
crystallization also a chemical solid–liquid separation technique, in which mass transfer of a solute from the liquid solution to a pure solid crystalline phase occurs.
sublimation is the transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase.
chromatography is the collective term for a set of laboratory techniques for the separation of mixtures
element one of a class of substances that cannot be separated into simpler substances by chemical means
periodic table tabular arrangement of the chemical elements, ordered by their atomic number (number of protons in the nucleus), electron configurations, and recurring chemical properties
compound is an entity consisting of two or more different atoms which associate via chemical bonds
pure substances A material that is composed of only one type of particle
law of definite proportions states that a chemical compound always contains exactly the same proportion of elements by mass
percent by mass the mass of just the element, and the molar mass of the whole compound. Then, you take the molar mass of just the element and divide it by the molar mass of the whole compound, and multiply by 100%
aqueous solution is a solution in which the solvent is water. It is usually shown in chemical equations by appending (aq) to the relevant chemical formula.
extensive property a property that changes when the size of the sample changes.
intensive property is a bulk property, meaning that it is a physical property of a system that does not depend on the system size or the amount of material in the system
molecule smallest particle in a chemical element or compound that has the chemical properties of that element or compound.
Created by: 1638999973040677