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Depends on what you mean by "physically combining" and what you mean by "pure substance"!
If you mean "mixing" and "pure chemical compounds"... well, for instance, petrol is a mixture of lots of compounds (like octane, heptane and others). Alloys (like stainless steel) are mixtures of various chemical elements (such as iron, chromium...). Seawater is a type of mixture (mostly water, but with salt and other things dissolved in it, which is a type of mixing). Even a human being is really a "mixture" of sorts.
The important difference is between a "mixture" and a "compound". In a compound, atoms of different elements are joined together in a particular arrangement. For instance, water is a compound: each water molecule is made of two hydrogen atoms and one oxygen atom, joined in a particular way. In a mixture, the different components (which themselves might be compounds) are just, well, mixed!
What else can I help you with?
Can pure substances be separated physically?
No, just mentally
What are the two categories that matter can be divided into?
Matter can be divided into two categories: pure substances and mixtures. Pure substances are made up of only one type of atom or molecule, while mixtures contain two or more different substances physically combined.
What 2 catigories can matter be divided into?
Matter can be divided into two categories: pure substances and mixtures. Pure substances are made up of only one type of atom or molecule, while mixtures are composed of two or more different substances that are physically combined.
What is formed by the combining of elements or other compounds through chemical reactions?
A compound is formed by the combining of elements or other compounds through chemical reactions. Compounds are made up of molecules that contain two or more different elements chemically bonded together in a fixed ratio. These chemical bonds are formed by the sharing or transfer of electrons between atoms.
Are there more pure substances or mixtures found in the world?
Mixtures are more common in the world compared to pure substances. Mixtures are combinations of two or more substances that can be physically separated, whereas pure substances are composed of only one type of substance and cannot be separated by physical means.
What is a physically combined pure substance?
Pure substances that are physically combined make a mixture.
Can pure substances be separated physically?
No, just mentally
What are the two categories that matter can be divided into?
Matter can be divided into two categories: pure substances and mixtures. Pure substances are made up of only one type of atom or molecule, while mixtures contain two or more different substances physically combined.
What 2 catigories can matter be divided into?
Matter can be divided into two categories: pure substances and mixtures. Pure substances are made up of only one type of atom or molecule, while mixtures are composed of two or more different substances that are physically combined.
What is formed by the combining of elements or other compounds through chemical reactions?
A compound is formed by the combining of elements or other compounds through chemical reactions. Compounds are made up of molecules that contain two or more different elements chemically bonded together in a fixed ratio. These chemical bonds are formed by the sharing or transfer of electrons between atoms.
Are there more pure substances or mixtures found in the world?
Mixtures are more common in the world compared to pure substances. Mixtures are combinations of two or more substances that can be physically separated, whereas pure substances are composed of only one type of substance and cannot be separated by physical means.
What do mixtures and pure substances have in common?
Mixtures and pure substances are both made up of different types of matter. However, mixtures contain two or more substances physically combined, while pure substances contain only one type of substance with a specific composition.
If a substance can be physically separated into its components is it a pure substance or a mixture?
If a substance can be physically separated into its components, it is a mixture, not a pure substance. A pure substance consists of only one type of particle and cannot be separated into other substances by physical means.
Why these pure substances come up into mixtures?
Pure substances come up into mixtures because different substances can combine physically without undergoing a chemical reaction. These mixtures can be either homogeneous (uniform composition) or heterogeneous (non-uniform composition) depending on the interactions between the pure substances. Mixing pure substances allows for the creation of new materials with unique properties and characteristics.
Are most substances around us pure substances ao mixture?
Most substances around us are mixtures, rather than pure substances. Mixtures are composed of two or more substances that are physically combined and can be separated by physical means, while pure substances are made up of only one type of particle. Examples of mixtures include air, sea water, and soil.
What is the opposite of a pure substance?
The opposite of a pure substance is a mixture.
What are the two major subdivision of matter?
The two major subdivisions of matter are pure substances and mixtures. Pure substances are made of only one type of atom or molecule, while mixtures are made of two or more different substances physically combined.
