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Substances in some mixtures can be separated by physical means.
As you read in Chapter 11, you can separate salt and pepper because
they have different physical properties. Substances may also have
different chemical properties that can be used to separate them from
one another.Scientists who study dinosaur fossils and other fossils use chemical
properties to separate mixtures. Fossils are often scattered throughout
limestone. It can be difficult to chip limestone off a fossil without
damaging the fossil. However, limestone can be dissolved by vinegar.
A bubbling reaction occurs. Fossils, which are made of a different kind
of rock, do not react with vinegar as quickly. So scientists sometimes
use vinegar or similar chemicals to separate fossils from rock.Separating Metals from OresOres are rocks that include metals combined with other substances.
People rely on chemistry to release metals from their ores. For example,
iron ore contains iron oxide. Heating iron ore in a hot furnace with solid
carbon allows the iron to separate from the oxygen in the ore. The resultThe fossil does not
react quickly with
vinegar, but the
limestone around
the fossil does.
What evidence of
this reaction can
you detect?is pure iron and carbon
dioxide. This process
works because iron has
the chemical property of
bonding to oxygen less
strongly than to carbon.In this blast furnace, iron is separated from iron ore. The process relies on the different chemical properties of the substances heated here
What else can I help you with?
How are physical and chemical properties of matter useful?
Physical and chemical properties of matter are useful because they can help you identify that substance. For example paper burns very easily and aluminum doesn't, this is how they can be described individually.
What happens to the chemical and physical properties of a substance formed in a chemical reaction?
The chemical properties of a substance change during a chemical reaction, meaning the substance undergoes a chemical change and forms new substances with different properties. The physical properties may also change, such as color, texture, or state of matter.
Which type of properties is easier to recognize physical or chemical?
Physical properties are generally easier to recognize compared to chemical properties because physical properties can be observed or measured without changing the substance's chemical composition. Examples of physical properties include color, size, shape, density, and melting point.
Are properties such odor color density and solubility physical or chemical properties?
Color and density are physical properties. Odor and solubility are chemical properties.
Are boiling points and freezing points examples of chemical properties?
No, boiling points and freezing points are examples of physical properties, not chemical properties. Chemical properties describe how a substance interacts with other substances to form new substances, while physical properties describe characteristics that can be observed without changing the chemical composition of the substance.
On what basis do scientists classify the minerals?
Scientists classify minerals based on their chemical composition, crystal structure, physical properties, and chemical properties. This classification helps them understand the characteristics of different minerals and how they form in nature.
Does chemical and physical properties are probably the same?
No. Chemical and physical properties are different.
When do the physical and chemical properties change?
Physical and chemical properties change as the result of a chemical change, which produces new products with different physical and chemical properties than the reactants.
How are physical and chemical properties of matter useful?
Physical and chemical properties of matter are useful because they can help you identify that substance. For example paper burns very easily and aluminum doesn't, this is how they can be described individually.
Difference between chemical and physical change?
A chemical change is when the chemical properties of a substance changes and a physical change is when the chemical properties stay the same but the physical properties (shape, temperature etc...)
Does copper have chemical or physical?
Copper has both chemical and physical properties. Chemical properties refer to how copper reacts with other substances, while physical properties refer to characteristics like its color, density, and conductivity.
Why is it helpful to know the the physical and chemical properties of a substance?
In is impossible to work with materials, substances etc. without a deep knowledge of all chemical and physical properties. And all around us: foods, building materials, electronics, cars, drugs are composed from materials with specific properties.
What facts about characteristic chemical and physical properties make it possible for sientist to compare and classify matter?
Scientists can compare and classify matter based on its chemical properties such as reactivity, flammability, and ability to form bonds with other substances. Physical properties such as melting point, boiling point, density, and conductivity also provide valuable information for classifying matter. By studying these properties, scientists can identify similarities and differences between different substances to categorize them accordingly.
Is sour milk a chemical properties or a physical properties?
Chemical property
Are fertilizers physical or chemical properties?
chemical
What happens to the chemical and physical properties of a substance formed in a chemical reaction?
The chemical properties of a substance change during a chemical reaction, meaning the substance undergoes a chemical change and forms new substances with different properties. The physical properties may also change, such as color, texture, or state of matter.
Is a property of matter chemical or physical?
Matter has chemical properties (ex.: chemical reactivity) or physical properties (ex.: thermal conductivity).
