Answer: Substance B has stronger bonds, and it takes more energy to undergo a phase change.
Explanation:
Substances with higher boilings have stronger intermolecular forces, and thus require more energy for phase changes to occur.
Since the electron is de-exited from 1(st) exited state (i.e n=2) to ground state (i.e n=1) for first line of Lyman series. Since the atomic number of Hydrogen is 1. λ = 4/3⋅912 A. 1/R = 912 A
Explanation:
A matchstick has a lot of chemical energy stored in it. When the match is struck, it burns and the chemical energy in it produces heat energy and light energy.
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The answer is Letter C. It includes all bodies of water or what is left of it.