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What is degreasing and how is it used?
Degreasing is the process of removing grease, oil, or lubricants from a surface to prepare it for painting, welding, or other processes that require a clean surface. It is commonly done using solvents, detergents, or mechanical methods such as scrubbing or blasting to ensure the surface is free from contaminants.
Is the nucleus involved in chemical reactions?
No, the nucleus is not directly involved in chemical reactions. Its main role is to store and protect the genetic material of the cell. Chemical reactions primarily occur in the cytoplasm of the cell where enzymes and molecules interact.
How can a chemical reactions used in water?
Often times, the chemicals used for the chemical reaction are dissolved in water to form an aqueous solution. The solutions are then used as the reactants for the reactions. It is done this way because being in solution makes a reaction go more quickly than if the solutes are just mixed together in a test tube or other container.
Two neutrons added to an atom of the element iridium result in?
If it is possible without any other nuclear reactions to be done, it'll give you an isotope of iridium.
Why noble gases participate in chemical reactions?
No, because they have a full valence shell. Chemical reactions proceed because atoms wish to share or exchange electrons. If an atom's valence shell is full, they tend not to do this under normal circumstances.
What solvents can dissolve polypropylene?
hexane
What is a chemistry reactions?
Chemical reactions are different molecules reacting with each other to form one or more products. Chemical reactions are done in everyday life from your breathing to digesting food to combusting gasoline to drive.
Is it possible for atomsin two compounds to replace each other?
Yes, it is possible. It is done in double displacement reactions.
Name two organic substances with inflammable vapours?
It depends on the work being done in the lab. I have a lab here at work that I process printing plates in, and we don't have any solvents at all. Biology labs have some solvents--they all have at least one kind of alcohol, and the other solvents depend, once again, on the work the lab does. A fuels lab will have many flammable solvents because the things they develop are solvents in their own right.
What type of experiments should be done in a fume hood?
Experiments with: - acids as liquids or gases - volatile solvents - corrosive materials - fine powders - materials with a very low radioactivity - toxic materials - reactions potentially explosive - sometimes, reactions involving thermally decomposition etc.
How do you dissolve plastics?
With solvents. The kind of solvent depends on the "plastic" involved. Polystyrene dissolves in benzene or toluene Polyurethane (not the thermoplastic which is insoluble in most solvents) can dissolve in acetone. Polyethylene is resistant to most organic solvents. Styrofoam will dissolve in the isopropanol solvents used in some glues. This can be helpful or hindering when working with arts and crafts.
What is degreasing and how is it used?
Degreasing is the process of removing grease, oil, or lubricants from a surface to prepare it for painting, welding, or other processes that require a clean surface. It is commonly done using solvents, detergents, or mechanical methods such as scrubbing or blasting to ensure the surface is free from contaminants.
What is an another name for exothermic and for endothermic reactions?
it is a Many chemical reactions release energy in the form of heat, light, or sound. These are exothermic reactions. Exothermic reactions may occur spontaneously and result in higher randomness or entropy (ΔS > 0) of the system. They are denoted by a negative heat flow (heat is lost to the surroundings) and decrease in enthalpy (ΔH < 0). In the lab, exothermic reactions produce heat or may even be explosive. There are other chemical reactions that must absorb energy in order to proceed. These are endothermic reactions. Endothermic reactions cannot occur spontaneously. Work must be done in order to get these reactions to occur. When endothermic reactions absorb energy, a temperature drop is measured during the reaction. Endothermic reactions are characterized by positive heat flow (into the reaction) and an increase in enthalpy (+ΔH).
Things that can be done to speeding up chemical reactions?
Heat or raise the concentration of the reactants, or add a catylast.
This was done in response to the violent reactions whites had against the Montgomery Bus Boycott and against the?
Freedom Rides
Where can you find unununium?
so far with the research that i have done its only common in areas were nuclear reactions are common.
Why do need to stir the water continuously during heating?
by heating we increase the inter moleculer space of the solvent so the solute particles get in the increased space and by stirring also the same purpoose is served . in short it is done so as to dissolve the solute in the solventHeating will help solutes dissolve in many solvents. For example salt will dissolve in hot water better than cold water.Many chemical reactions either require energy input to initiate a reaction, or they react better at higher energy levels.Endothermic reactions require energy to proceed.Even exothermic reactions may require activation energy to initiate the reactions.Or... many reactions won't run efficiently or completely at cold temperatures.
