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What is the limiting reactant reagent and what is excess reagent in recrystallization?
The Limiting Reactant is the smaller number once you compare the two reactants with one product. The product that you are comparing them both with must be the same. The Excess Reactant is the larger number, or the amount left over in the chemical reaction.
Ions that do not change in a chemical reaction is?
Spectator ions do not change in a chemical reaction as they appear in the reactants and products in the same ionic form. They do not participate in the reaction and are typically omitted when writing net ionic equations.
What is Lucas reagent?
This is a mixture of concentrated hydrochloric acid and anhydrous zinc chloride (which acts as a catalyst). To prepare, mix 136.29 g of anhydrous zinc chloride (ZnCl2) with 105 g of concentrated hydrochloric acid (HCl). Place beaker in an ice bath, due to the exothermic reaction. Stir with a glass rod until all ZnCl2 is dissolved.
How would you speed up a reaction without a catalyst?
heat the vessel the reaction is taking place!
What evidence that a chemical reaction has taken place would a living thing show?
work
Does the reaction between non-metals and acid take place?
no reaction takes place
What type of reaction take place in rancidity?
chemical reaction takes place in rancidity
What is the opposite of reactants?
When a chemical reaction takes place, it starts with chemicals which are called reactants, literally meaning those which react, and after the reaction has taken place you then have chemicals called products, because they were produced by the reaction.
When a nucleotide is omitted from a newly made strand of DNA would it create a frame shift mutation?
yes. Because the 1 nucleotide is not evenly divided by 3, the reading frame would not be in the same place, resulting in a new translation for the remaining sequence.
If you were holding a beaker in which an exothermic reaction just took place would the beaker feel hot or cold?
the beaker would feel hot
What takes place in the stoma of the chloroplasts?
Dark reaction is taken place. It is the light independent reaction
What reaction takes places in the thylakoid disc of the chloroplast?
Light reaction takes place. The first step of photosynthesis
