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An element or ion moves out of one compound and into another. (One element is replaced by another in a compound.)
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How does the SN1 reaction in this experiment cause the acid-base indicator phenolphthalein to change color?
The displacement of chloride or bromide by and iodine ion in an acetone based solution will cause this type of reaction to happen in this experiment.
Why do hot reactions do better than cold reactions?
When heated particles move faster. Reactions happen when particles smash together, so, when a mixture is heated the particles are moving around a lot and therefore more collisions happen this makes a more violent reaction.
Why cant titanium be extracted from its ore by carbon?
carbon cannot be used to extract titanium because titanium is more reactive than carbon so therefore, a displacement reaction cannot happen hope this helps :)
What happen when iron nail is dipped in copper sulphate solution?
After a while you will observe that the nail has become coated with a layer of copper. This is a single displacement reaction since iron is more reactive than copper CuSO4 + Fe = FeSO4 + Cu
Describe the collision theory in relation to reaction rate?
When you have a higher concentration of elements in the reaction you are no matter what speed going to have a faster reaction taking place however the lower the concentration it is the more time it will take for the reaction to take place this process is similar to pressure as it reflects how the more of it there is the faster the reaction will be and how if there is less of it the slower the reaction will be. (related to the Collision Theory)
When would a displacement reaction cause no reaction?
Displacement reactions happen when one element or ion is more reactive than another in the same solution and replaces it in a compound. This will happen if the elements displacing each other are different metals or are halogens .
What is most likely to happen during a single-displacement reaction?
A more reactive metal pushes out a less reactive metal out of a compound element, eg. CuSo4+Mg=MgSo4+Cu
What would happen to entropy in a solid to gas reaction?
It increases; more freely moving particles.
What happens to the motion of gas particles when their temperature increases?
They start to move faster, therefore, the reaction will happen quicker. This is because there is more chance of a collision between the particles.
What happens to the motion of gas particles when temperature increases?
They start to move faster, therefore, the reaction will happen quicker. This is because there is more chance of a collision between the particles.
How does the SN1 reaction in this experiment cause the acid-base indicator phenolphthalein to change color?
The displacement of chloride or bromide by and iodine ion in an acetone based solution will cause this type of reaction to happen in this experiment.
Why do hot reactions do better than cold reactions?
When heated particles move faster. Reactions happen when particles smash together, so, when a mixture is heated the particles are moving around a lot and therefore more collisions happen this makes a more violent reaction.
What are the factors affecting rate of reactoin?
There are 4 factors affecting rate: - Surface area -Temperature - Catalysts -Concentration If the surface area is increased the reaction rate will increase due to more particles being exposed to the reacting chemical, the more particles colliding the quicker the reaction will happen. Temperature causes particles to speed up or slow down, for example in a gas particles are moving very quickly, and therefore they collide more often, this would mean that a reaction would happen quickly since reaction depends on the amount of collisions as well as the strength of collisions. Catalysts are added substances into reactions which only help to speed up the reaction, they are not changed in the reaction and remain the same after the reaction has occurred. If concentration is increased more particles are given the chance to collide, so once again, with more collisions the more quickly a reaction occurs.
What must happen to the entropy of the universe during a spontaneous reaction or process?
It increases.
What change could happen during a chemical reaction?
the chemical shall be changed
What happen to large molecules such as food particles during phagocytosis?
During Phagocytosis large particles are enveloped by the cell membrane of a (usually larger) cell and internalized to form a phagosome, or "food vacuole."
When silver nitrate reacts with hydrochloric acid what type of reaction takes place A synthesis B decomposition C double displacement D single replacement?
It is a double displacement reaction.Ag(NO3)3(aq) + 3HCL(aq) ----> AgCl3(s) + 3HNO3(aq)This reaction will happen because there is a solid being formed. I hope that answers your question.
