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Increased surface area for reaction to occur on
Jaunita Hand
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What apparatus is used for founding or grinding solid substance into powder?
pestel and mortar
What are three ways to increase the rate at which particular reaction proceeds?
There are three ways to increase the rate of a chemical reaction. One way is to increase the temperature of the reaction, which increases the rate of molecular collision. Another option is to add a catalyst to the reaction which chemically enables the rate of reaction. Lastly, increase the pressure in the reaction area, which increases the rate of molecular collisions.
Why is it necessary to grind the sample in the recrystallization process?
Grinding the sample in the recrystallization process will allow for maximum exposure of particles in the original crystal. This will allow a more complete reaction and reformation of crystals that are more pure and stronger than before.
Is gold powder still a solid?
The gold powder is also a solid.
Setting of a jelly-is it a chemical change?
Yes, it is. This is because there is a physical change. Being a liquid forming a solid. There is a chemical reaction when the hot water is added to the powder, forming a liquid, which is cooled, forming a solid
How do you increase the rate of a reaction of a solid?
Grinding the solid into a powder increases the surface area and increases the rate of the reaction. Heating it would also increase the rate.
What apparatus is used for founding or grinding solid substance into powder?
pestel and mortar
How is the streak of a mineral found?
By change of state from solid mass to powder through breaking or grinding.
What does grinding solid reactants into powder - do to the reactant particles?
The powdered form of a solid reactant has an aggregate surface area that is many times greater than the solid blockfrom which it came. This makes any reaction proceed faster and more efficiently, usually resulting in enhanced yield as well.
How does increasing the surface area of a solid reactant affect the energy of molecular collisions?
Reactions depend on molecular collisions. If a solid reactant is a solid, grinding it into smaller particles will increase the surface area. The more surface area, the faster the molecular collisions, which in turn increases the rate of reaction.
Five physical change?
1) melting from solid to liquid; 2) evaporationfrom liquid to vapour;3) sublimation direct from solid to vapour; 4) grinding to make a solid into a powder; 5) dissolving a solid in a solute; 6) freezing from a liquid to a solid.
What are three ways to increase the rate at which particular reaction proceeds?
There are three ways to increase the rate of a chemical reaction. One way is to increase the temperature of the reaction, which increases the rate of molecular collision. Another option is to add a catalyst to the reaction which chemically enables the rate of reaction. Lastly, increase the pressure in the reaction area, which increases the rate of molecular collisions.
Why is it necessary to grind the sample in the recrystallization process?
Grinding the sample in the recrystallization process will allow for maximum exposure of particles in the original crystal. This will allow a more complete reaction and reformation of crystals that are more pure and stronger than before.
What does increasing the surface area of a solid do to the solution?
When the surface area is higher, it helps to dissolve it in the solution faster.
Is gold powder still a solid?
The gold powder is also a solid.
How can you increase the rate of dissolution?
One way is to grind up solid, or increase the temperature. Also, you can stir the solution, and then, there are enzymes.
Why is powder in a chemical reaction used instead of lumps?
Chemical reactions involving solids work on the surface of the solid. A fine powder has more surface area than big lumps.
