Answer:
The reaction rate will be multiplied by four.
Explanation:
The reaction rate is the measure of how fast a reaction is happening, and it can be calculated by how fast the reactants are disappearing, or how fast the products are being formed.
For a generic reaction:
A → B + C
The rate (r) is:
-r = k*[A]ⁿ
The minus signal refers to the disappearing of the reactant, k is the velocity constant of the reaction, and n is the reaction order. So, for a second-order reaction:
-r = k*[A]²
If the concentration of A is doubled: [A]' = 2[A]
-r' = k*(2[A])²
-r' = k*4*[A]
-r' = 4*k*[A]
-r' = 4*(-r)
Answer: Option (A) is the correct answer.
Explanation:
When monomers in a chemical reaction combine together then it results in the formation of long chains. This process is known as polymerization.
For example, rubber and plastic are formed by polymerization.
Esterification is defined as a process in which esters are formed when an acid is heated with alcohol.
Saponification is defined as a process in which aqueous alkali is heated with a fat or oil resulting in the formation of a soap.
Fermentation is a process in which bacteria like microorganisms, yeast etc help in the breakdown of a substance into simpler substances.
Thus, we can conclude that polymerization is an organic reaction which produces rubber and plastics.
B. A substance that's composed of atoms
C. A representation of chemical properties
D. The force that holds together the elements in a compound
Chemical bond is the attraction of two atoms that holds the atoms together.
Explanation:
A chemical reaction equation that contains same number of atoms on both reactant and product side is known as a balanced chemical reaction equation.
And, when positive and negative ions of the two reactant species exchange their position then this type of reaction is known as double replacement reaction.
For example,
Here, number of reactant molecules are as follows.
K = 1
OH = 1
Pb = 1
= 2
Number of product molecules are as follows.
K = 1
OH = 2
Pb = 1
= 1
Hence, to balance this equation multiply KOH by 2 on reactant side and multiply by 2 on product side.
Therefore, the balanced chemical reaction equation is as follows.
Since, both positive and negative ions on the reactant side get exchanged. Hence, it is a double replacement reaction.
b.As reactants form products, the potential energy increases.
c.Thermal energy is transferred from the product to the reacting substances.
d.Thermal energy is transferred from the surroundings to the reacting substances.
Answer:
As reactants form products, the potential energy decreases.
Explanation:
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