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Flashcards - Understanding Matter, Elements, Compounds & Mixtures

Flashcards - Understanding Matter, Elements, Compounds & Mixtures
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mixture
In chemistry, a mixture is a material system made up of two or more different substances which are mixed but are not combined chemically
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filtration
Filtration is any of various mechanical, physical or biological operations that separate solids from fluids by adding a medium through which only the fluid can pass
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molecule
A molecule is an electrically neutral group of two or more atoms held together by chemical bonds
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Ionic compounds
In chemistry, an ionic compound is a chemical compound comprising ions held together by electrostatic forces termed ionic bonding
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compound
A chemical compound is an entity consisting of two or more atoms, at least two from different elements, which associate via chemical bonds
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element
In mathematics, an element, or member, of a set is any one of the distinct objects that make up that set
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atom
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element
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solid
Solid is one of the four fundamental states of matter
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Hardness
Hardness is a measure of how resistant solid matter is to various kinds of permanent shape change when a compressive force is applied
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color
Color or colour is the visual perceptual property corresponding in humans to the categories called red, blue, yellow, etc
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color
Color or colour is the visual perceptual property corresponding in humans to the categories called red, blue, yellow, etc
Hardness
Hardness is a measure of how resistant solid matter is to various kinds of permanent shape change when a compressive force is applied
solid
Solid is one of the four fundamental states of matter
atom
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element
element
In mathematics, an element, or member, of a set is any one of the distinct objects that make up that set
compound
A chemical compound is an entity consisting of two or more atoms, at least two from different elements, which associate via chemical bonds
Ionic compounds
In chemistry, an ionic compound is a chemical compound comprising ions held together by electrostatic forces termed ionic bonding
molecule
A molecule is an electrically neutral group of two or more atoms held together by chemical bonds
filtration
Filtration is any of various mechanical, physical or biological operations that separate solids from fluids by adding a medium through which only the fluid can pass
mixture
In chemistry, a mixture is a material system made up of two or more different substances which are mixed but are not combined chemically
solution
In chemistry, a solution is a homogeneous mixture composed of two or more substances
chemical reaction
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another
Alkaline earth metals
The alkaline earth metals are six chemical elements in column 2 of the Periodic table
Physical properties
A physical property is any property that is measurable, whose value describes a state of a physical system
gas
Gas is one of the four fundamental states of matter
liquid
A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a constant volume independent of pressure
Covalent compounds
A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms
metalloids
A metalloid is any chemical element which has properties in between those of metals and nonmetals, or that has a mixture of them
extensive
Physical properties of materials and systems can often be categorized as being either intensive or extensive quantities, according to how the property changes when the size of the system changes
phase change
The term phase transition is most commonly used to describe transitions between solid, liquid and gaseous states of matter, and, in rare cases, plasma
halogens
The halogens or halogen elements are a group in the periodic table consisting of five chemically related elements: fluorine , chlorine , bromine , iodine , and astatine

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