Kelvin (K) is the only scale that has a numeral value assigned to absolute zero. 
        
             
        
        
        
Answer:
A 19
Explanation:
2 mole of KClO3 produces 3 mole of O3
 2 : 3
 1 : 3/2
 12.61 : 3/2 × 12.61
 12.61 : 18.9
 12.61 mole of KClO3 produces 18.9mole of O2.
 
        
             
        
        
        
There are two subshells that are s and p, which are present in the second energy level.
The energy level can be defined as the fixed distances from the nucleus of an atom where electrons may be found. Each energy level is divided into some Subshells. These subshells are known as s-subshell, p-subshell, d-subshell, and f-subshell. This subshell contains some orbitals, these orbitals are the place where there is the maximum probability of getting the electrons. In one orbital, a maximum of two electrons can be present.
Hence, there are two subshells in the second energy level.
Learn more about subshells here:
brainly.com/question/26438203
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Answer:
 All I know is these things hope they help u.