Answer:
argon-40
Explanation:
The relative atomic mass of Argon is 39.948. This is very close to the mass of argon-40. Usually, the relative atomic mass of an element is the sum of the percentage abundance of each isotope in nature multiplied by its mass. The result of this sum is normally biased towards the isotope with the highest abundance. In the case of argon, argon-40 must have the highest abundance, hence the value of the relative atomic mass.
Argon-40 is the most abundant isotope of argon in nature because the reported atomic mass of argon is closer to 40 atomic mass units.
Given that argon has three naturally occurring isotopes: argon-36, argon-38, and argon-40, compare their masses to determine which one is most likely to contribute the most to the average atomic mass of argon.
The atomic mass of argon is typically given as approximately 39.95 atomic mass units (u). This value is a weighted average of the masses of the different isotopes of argon, taking into account their relative abundance in nature.
Argon-36 has a mass of approximately 36 atomic mass units.
Argon-38 has a mass of approximately 38 atomic mass units.
Argon-40 has a mass of approximately 40 atomic mass units.
Since the reported atomic mass of argon is closer to 40 atomic mass units, it suggests that argon-40 is the most abundant isotope of argon in nature.
Learn more about isotopes, here:
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gasoline
carbon
glucose
Answer: The correct answer is carbon.
Explanation:
Combustion reaction is defined as the reaction in which a hydrocarbon burns in oxygen or reacts with oxygen gas to produce carbon dioxide and water molecule.
Fossil fuels are defined as the hydrocarbons which mainly contains coal, fuel oil, natural gas etc..
When fossil fuels are burned in air, it mainly releases carbon dioxide, sulfur dioxide, methane, nitrous oxide etc..
The major component released during the combustion of fossil fuels is carbon.
Hence, the correct answer is carbon.
The products can weigh less than the reactants.
There is no loss of mass in the reaction.
a and b
Answer:
A. Some of the mass is converted to energy.
B.The products can weigh less than the reactants.
Explanation:
Nuclear reaction: A reaction in which a nuclei splits into two or more smaller nuclei of mass less than the reactants ,or two or more nuclei combined together to form heavy nuclei of mass less than the reactants and huge amount of energy released.
Nuclear reactions are of two types
1. Nuclear fission
2.Nuclear fusion
1. Nuclear fusion: A reaction in which two or more lighter nuclei combined together to form heavy nuclei of mass slightly less than the total mass of reactants and a large amount of energy released. Because the difference in mass of reactants and products change into energy .
2.Nuclear fission: A reaction in which a heavy nuclei splits into two or more lighter nuclei of total mass slightly less than the mass of reactant. Because the difference in mass of product and reactant change into energy therefore, a huge amount of energy released during this reaction.
Therefore, Option A and B are correct.
Answer : A. Some of the mass is converted to energy.
B.The products can weigh less than the reactants.
Copper have in its nucleus?
1. Will contain the same number of molecules
2. Will contain the same number of atoms
3. Will occupy the same volume
4. Will have the same g.f.w
Answer:
1 and 3
Explanation:
B. reduction
C. substitution
D. condensation
Answer: Option (B) is the correct answer.
Explanation:
When an atom gains electrons then it becomes rich in electrons and therefore it acquires a negative charge.
Also, it is known that a reduction reaction is a reaction in which an element gain electron(s).
For example, is a reduction reaction.
Thus, we can conclude that when nonmetal atoms become negative nonmetal ions then type of reaction which occurs is reduction reaction.