"A mixture is a material made up of two or more different chemical substances which are not chemically bonded."
A combination of two or more substances that are not chemically combined.
Matter: The physical substance that everything is made up of. It can exist in three states: solid, liquid, and gas.
Types of Mixtures: Homogeneous and Heterogeneous. Homogeneous mixtures have a uniform composition throughout, while heterogeneous mixtures have different components that can be physically separated.
Solutions: Solvent, solute, and concentration. A solution is a homogeneous mixture where one substance (the solute) is dissolved in another substance (the solvent). The concentration refers to the amount of solute present in a given amount of solvent.
Separation of Mixtures: Filtration, distillation, chromatography, and evaporation. These techniques are used to separate the different components of a mixture.
States of Matter: Changes in state, melting, freezing, condensation, and boiling. These refer to the different physical changes that matter undergoes as it changes its state.
Energy: Heat, kinetic and potential energy, and specific heat. Energy is required to change the state of matter, and the amount of energy that is required is known as specific heat.
Mixtures in Everyday Life: Examples of mixtures that we encounter daily, such as air, soil, food, and drinks.
Chemical Reactions: How mixtures can be transformed due to chemical reactions, and the importance of balancing chemical equations.
Properties of Mixtures: Physical and chemical properties like boiling point, density, and reactivity can be used to identify mixtures.
Effects of Impurities: Impurities in a mixture can affect its properties, and can also lead to safety concerns.
Homogeneous mixtures: These mixtures are uniform throughout, and the composition of the mixture is the same in all parts. Examples include saltwater, air, and alloys like brass.
Heterogeneous mixtures: These mixtures have non-uniform composition and are made up of two or more distinct phases. Examples include soil, blood, and salad dressing.
Colloids: Colloids are a type of heterogeneous mixture where the particles are larger than in a solution but smaller than in a suspension. Examples include milk, gelatin, and fog.
Suspensions: Suspensions are heterogeneous mixtures where particles settle when left undisturbed. Examples include muddy water, blood cells in plasma, and oil and vinegar dressing.
Solutions: Solutions are homogeneous mixtures where one substance dissolves in another. The substance that dissolves is the solute, and the substance in which it dissolves is the solvent. Examples include saltwater, sugar water, and carbonated beverages.
Emulsions: Emulsions are mixtures of immiscible liquids, held together by an emulsifying agent. Examples include mayonnaise, salad dressing, and whipped cream.
Alloys: Alloys are homogeneous mixtures of two or more metals or a metal and a non-metal. Examples include brass, steel, and bronze.
Electromagnetic mixtures: These mixtures contain different types of electromagnetic waves, such as radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, x-rays, and gamma rays.
Thermal mixtures: Thermal mixtures are made up of substances at different temperatures. Examples include heated water, warm air, and cooled gases.
Chemical mixtures: Chemical mixtures involve the combination of different substances that undergo chemical reactions. Examples include combustion, metabolism, and chemical synthesis.
Nuclear mixtures: Nuclear mixtures involve the combination of atomic nuclei, both naturally occurring and artificially created, that undergo various types of nuclear reactions. Examples include fusion, fission, and radioactive decay.
"Mixtures are one product of mechanically blending or mixing chemical substances such as elements and compounds, without chemical bonding or other chemical change, so that each ingredient substance retains its own chemical properties and makeup."
"A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions, and colloids."
"Despite the fact that there are no chemical changes to its constituents..."
"The physical properties of a mixture, such as its melting point, may differ from those of the components."
"Some mixtures can be separated into their components by using physical (mechanical or thermal) means."
"Azeotropes are one kind of mixture that usually poses considerable difficulties regarding the separation processes required to obtain their constituents."
"...physical or chemical processes or, even a blend of them."
"A mixture is a material made up of two or more different chemical substances... without chemical bonding or other chemical change..."
"A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions, and colloids."
"The physical properties of a mixture, such as its melting point, may differ from those of the components."
"Mixtures are one product of mechanically blending or mixing chemical substances such as elements and compounds..."
"Some mixtures can be separated into their components by using physical (mechanical or thermal) means."
"Azeotropes are one kind of mixture that usually poses considerable difficulties regarding the separation processes required to obtain their constituents."
"...physical or chemical processes or, even a blend of them."
"...so that each ingredient substance retains its own chemical properties and makeup."
"A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions, and colloids."
"A mixture is a material made up of two or more different chemical substances..."
"A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions, and colloids."
"A mixture is a material made up of two or more different chemical substances which are not chemically bonded."