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Why would you state that sand and dirt is an example of a mixture that is not chemically combined?
Sand and dirt are considered mixtures because their components retain their individual properties and can be physically separated. Unlike a chemical compound, where elements are chemically bonded and cannot be separated without a chemical reaction, the particles in sand and dirt simply coexist without undergoing any chemical change. This means that the composition can vary, and the original substances remain intact, highlighting the nature of a physical mixture.
What else can I help you with?
How do you define atomic state?
Some elements that are not chemically combined with any other substance exist as single atoms. Pure copper, pure lead, pure silver. Oxygen does not, the pure state of oxygen is a diatomic molecule, O2.
What is an example of a change of state is it phy sical change?
An example of a change of state as a physical change is the melting of ice into water. This change involves a solid (ice) converting into a liquid (water) due to an increase in temperature, but the substance itself remains the same chemically.
Why its possible to use physical properties to separate a mixture?
yes
Why are compounds chemically combined?
Compounds are chemically combined to achieve greater stability through the formation of chemical bonds between different elements. This combination allows atoms to fulfill their valence shell requirements, leading to a more energetically favorable state. The resulting compounds often exhibit properties that are distinct from the individual elements, enabling a vast array of chemical behaviors and functions. Additionally, the formation of compounds is essential for the complexity of biological and chemical processes in nature.
How are mixtures and compounds different?
Mixture in chemistry terminology refers to a mixture of two or more components (elements, compounds or others) in such a way that there are no specific proportions. Moreover, the constituent components retain their characteristic properties to a greater extent. Mixtures do not have fixed boiling or melting points, rather they boil or melt over temperature ranges. Mixtures can be in the solid, liquid or gas state. Compounds on the other hand are combinations of two or more elements combined in specific proportions e.g. 2 atoms of hydrogen and one of oxygen element combine to form water H2O. In forming a compound, the constituent materials lose their characteristic properties to a greater extent e.g. Hydrogen is combustible, and oxygen helps in combustion whereas water is neither combustible nor helps in combustion. Compounds, if do not have any impurities, melt and boil at fixed temperatures. Compounds also exist in the solid, liquid and gas states.
What is made when oxygen and argon are combined?
When oxygen and argon are combined, they do not form a specific compound but rather remain as a mixture of the two gases. Both oxygen and argon exist in gaseous state and do not chemically react with each other to form a new compound.
Is a mixture a state of matter?
A mixture is not a state of matter. A mixture is a combination of different substances that are physically combined but not chemically bonded, such as a solution or a heterogeneous mixture. States of matter refer to the physical forms that a substance can exist in, such as solid, liquid, or gas.
What does chemically combined mean?
Chemically combined refers to the process of something being combined with something else via a chemical reaction. They cannot be physically split up, as they require another chemical reaction to separate them.
What planets have oxygen in them?
Almost all the planets have oxygen within them in a chemically combined state {for example: sulphur dioxide, water, etc.}. However, only the Earth has any significant amount of oxygen as a gas, in its atmosphere.
What kind of change occurs when a mixture forms?
A mixture is a solution of a compound or the liquid state of a compound. When you make a solution of a salt, the salt will solute in the solvent, and go to the ionic state. Example, NaCl in water: NaCl(s) -> Na+(aq) + Cl-(aq)
Is a flavoured drink a compound or element or a mixture?
It is a mixture. A element contains only one of the elements from the periodic table and a mixture is something with more then one element but unlike a compound the components are not chemically bonded to one another it can be changed or filtered back to its original state.
How do you define atomic state?
Some elements that are not chemically combined with any other substance exist as single atoms. Pure copper, pure lead, pure silver. Oxygen does not, the pure state of oxygen is a diatomic molecule, O2.
What is an example of a change of state is it phy sical change?
An example of a change of state as a physical change is the melting of ice into water. This change involves a solid (ice) converting into a liquid (water) due to an increase in temperature, but the substance itself remains the same chemically.
Why its possible to use physical properties to separate a mixture?
yes
What is an example of change of state?
An example of a change of state is an ice cube melting and becoming liquid water, or liquid water boiling to become steam.
Why are compounds chemically combined?
Compounds are chemically combined to achieve greater stability through the formation of chemical bonds between different elements. This combination allows atoms to fulfill their valence shell requirements, leading to a more energetically favorable state. The resulting compounds often exhibit properties that are distinct from the individual elements, enabling a vast array of chemical behaviors and functions. Additionally, the formation of compounds is essential for the complexity of biological and chemical processes in nature.
What and a homogeneous mixture?
A homogeneous mixture is of uniform content throughout the entire container. In other words, the 2 parts of the mixture are completely mixed (example: vinegar and water). A heterogeneous mixture will not be completely mixed, and the concentrations are not even throughout the mixture (example: oil and water).
