No. The essence of a chemical reaction is the alteration of the chemical structure of the substance. The reaction that allows for the substance to keep their properties is the physical reaction.
yes is does
chemical equations
its either a proton, an atom, a molecule, or an element. But im not sure which one it is. So keep that in mind.
In Cytoplasm Chemical Reaction Takes Place That Help The Necleaus Keep The Cell Functioning Properly.
The elements in compounds do not keep their individual properties.
There are three specific laws to keep in mind when working with reaction enthalpies. They are: Î?H is directly proportional to the quantity of a substance that reacts or is produced by a reaction, Î?H for a reaction is equal in magnitude but opposite in sign to Î?H for the reverse reaction, and Î?H is independent of the number of steps involved.
No, physical and chemical properties of species that we have in the beginning of a chemical reaction undergoes oxidation and reduction reaction. This gives us product species that is completely different that reactants. Rate of reaction can be calculated by kinetics.
Some, but not all, substances do so. Such substances are known as catalysts.
Physical properties are properties that can be observed without a chemical reaction. Examples are melting and boiling point, or in some cases sublimation point (conversion straight from a solid to a gas), magnetism, density, luster (shiny), hardness, and color. you can observe if these properties are applicable to a substance without changing it to another substance in the process. When you test for magnetism of a metal, once you find out if it is magnetic or not, you still have the same metal, not something else. Chemical properties require a chemical reaction to take place for the properties to be observed, resulting in the substance changing into an other substance in the process. Two examples are flammability and reactivity with water. When something catches fire and the fire has burned itself out, you no longer have whatever you started off with, such as wood, but rather a pile of ash, which is mostly carbon. When something reacts with water, after it's done reacting, it is no longer what it was to begin with, otherwise it would keep reacting. To find out if chemical properties apply to a compound, you won't still have that compound if the answer is "yes".
Yes
Atoms.
You are describing a mixture.
chemical equations
A mechanical mixture is a mixture in which the components can be separated by mechanical means. In other words, there is no chemical bonding. The parts keep their own properties and chemical make up.
The state of the substance, the color of it and the odor (should be careful and keep the distance, otherwise may cause irritations or hazard) can be tested without altering the substance.
Nitrogen is kept in places to keep away air as it is very less reactive.
A physical change, and a chemical change.
its either a proton, an atom, a molecule, or an element. But im not sure which one it is. So keep that in mind.