Answer:
Here's what I get
Explanation:
In double-displacement (metathesis) reactions, such as precipitation and acid-base reactions, the cations of two compounds exchange places; these reactions are not redox processes.
General Reaction: AB + CD → AD + CB
In solution, single-displacement reactions occur when an atom of one element displaces the atom of another. Since one of the reactants is an element, all single-displacement reactions are redox processes.
General Reaction: X + YZ → XY + Z
Answer :
In double-displacement (metathesis) reactions, such as precipitation and acid-base reactions, the cations of two reactants exchange places; these reactions are not redox processes.
In solution, single-displacement reactions occur when an atom of one element displaces the atom of another. Since one of the reactants is an element, all single-displacement reactions are redox processes.
Explanation :
Double-displacement reaction : It is defined as the reaction in which the cation of two reactants molecule exchange their places to give two different products.
The double-displacement reaction are not a redox reaction.
It is represented as :
Where A and C are the cations and B and D are the anions.
Single-displacement reaction : It is a type of reaction in which the more reactive metal displaces the least reactive metal from its solution.
It is represented as :
Where A is the most reactive metal and BC is the compound in which the B is the least reactive metal which is displaced by the most reactive metal A.
The single-displacement reaction are a redox reaction.
O₂
CaCO₃
Ca(OH)₂
Which among the following will make lime water look milky
option C) Ca(OH)₂
Answer:
The answer is
Explanation:
The volume of a substance when given the density and mass can be found by using the formula
From the question
mass = 9.38 g
density = 2.65 g/cm³
The volume of the quartz is
We have the final answer as
Hope this helps you
The gold foil experiment, conducted by Ernest Rutherford, discovered the existence of a small, dense nucleus within an atom, making answer (2) the correct one.
The gold foil experiment was conducted by Ernest Rutherford and led to the discovery of a small, dense nucleus within the atom. This means that the correct answer to your question is (2) contains a small, dense nucleus. Prior to this experiment, the widely accepted model was the 'plum pudding' model, which had negatively charged electrons embedded within a positively charged sphere. The gold foil experiment upended this model as it was discovered that most alpha particles passed through the gold foil undeterred, but a small fraction was deflected at large angles, suggesting that a tiny but dense packet of positive charge — identified as the nucleus — existed in the center of the atom. This discovery led to the formation of the Rutherford atomic model.
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This reaction is best described as
(1) addition involving a saturated hydrocarbon
(2) addition involving an unsaturated hydrocarbon
(3) substitution involving a saturated hydrocarbon
(4) substitution involving an unsaturated hydrocarbon
This reaction is best described as substitution involving a saturated hydrocarbon. Therefore, the correct option is option C.
When one atom or group of atoms in a molecule is replaced by another atom or group of atoms, the chemical reaction is known as a substitution reaction. Usually, a reactant molecule and a reagent molecule, which supplies the replacing atom or group, engage in this reaction. Nucleophilic substitution and electrophilic substitution are the two primary categories of substitution processes. A nucleophile (a substance rich in electrons) can replace another atom or group in a molecule in nucleophilic substitution processes. A nucleophile combines with an electrophile (an electron-deficient species) in organic chemistry regularly to produce this kind of reaction, which results in the formation of a new molecule.
To know more about substitution reaction, here:
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✅Energy exists in many different forms✅
Examples of these are: light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy and so on. Each forms can be converted or changed into the other forms.
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