Hi!
The correct answer would be chemical energy.
Energy is classified into two basic categories:
Kinetic Energy
Potential Energy
Kinetic energy is possessed by objects or particles in motion, like waves or molecules as a system. Kinetic energy further includes sound energy (along with others not in listed in the question)
Potential energy is the energy that is reserved/stored or possessed by an object in a particular position. Potential energy further includes gravitational and chemical energy (along with others not in the question)
The energy between bonds is a form of potential energy, as energy is stored in the bonds. The energy stored in the bond is associated with the position of the atoms in relation to one another and the structure of the molecule.
Hope this helps!
Answer: Option (D) is the correct answer.
Explanation:
Valence shell is the shell present on the outermost core of an atom and electrons present in the valence shell are known as valence electrons.
If an atom has completely filled valence shell then it means the atom is not reactive in nature because it is already stable.
But when an atom has less than eight electrons in its valence shell then it means to attain stability the atom will readily attract electrons towards itself.
As the given element 1 has 8 electrons in its valence shell. Hence, it is not reactive in nature but element 2 has 6 valence electrons. So, in order to attain stability element 2 will readily attract 2 electrons from a donor atom.
Thus, we can conclude that element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.
The molecular weight of sodium is 23gr/mol. There is 31.5g sodium react used for reaction. From the equation, you can conclude that for every 2 sodium atoms, there will be 1 H2 gas formed.
The number of the H2 gas molecule formed would be: (2/1) * 31.5g/(23g/mol) = 2.74 mol
In STP an ideal gas will have volume 22.4l/mol. The volume of H2 gas would be: 22.4 l/mol * 2.74 mol= 61.36 liters.
Explanation:
ask them out but it may not work