(chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
a property used to characterize materials in reactions that change their identity
(chemistry) a process in which one or more substances are changed into others
A one or two letter representation of an element
an enclosure of residences and other building (especially in the Orient)
the process of purifying a liquid by boiling it and condensing its vapors
an abstract part of something
a property that depends on the amount of matter in a sample
the process whereby fluids pass through a filter or a filtering medium
a pedal that controls the throttle valve
a mixture in which different materials can be distinguished easily
a mixture in which substances are evenly distributed throughout the mixture
law of conservation of mass
Is any physical change or chemical reaction, mass is conserved; Mass can be neither created nor destroy.
a substance in the fluid state of matter having no fixed shape but a fixed volume
(often followed by 'of') a large number or amount or extent
(chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)
(astronomy) the particular appearance of a body's state of illumination (especially one of the recurring shapes of the part of Earth's moon that is illuminated by the sun)
a change from one state (solid or liquid or gas) to another without a change in chemical composition
A characteristic of a pure substance that can be observed without changing it into another substance
done with very great haste and without due deliberation
a chemical substance formed as a result of a chemical reaction
a chemical substance that is present at the start of a chemical reaction
of definite shape and volume
a homogeneous mixture of two or more substances
the choicest or most essential or most vital part of some idea or experience
Describes the gaseous state of a substance that is generally a liquid or solid at room temperature
physical objects consisting of a number of pages bound together
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