The velocity would be 0.5 i think
        
             
        
        
        
Non-polar covalent
Explanation:
Propane is made up of non-polar covalent bonds and it can be expected to dissolve in hexane and to not dissolve in water. 
Propane is an hydrocarbon gas. 
It forms by sharing of electrons between two atoms with very low electronegativity differences. 
This differences results in equal sharing of the shared electron. Therefore they form a non-polar covalent bond. 
Water is a polar covalent compound and cannot dissolve compounds that are not polar like propane. 
Propane will only dissolve in a like substance like hexane which is equally non-polar. 
learn more: 
Covalent compounds brainly.com/question/3109255
#learnwithBrainly
 
        
             
        
        
        
Answer:
Explanation:
A bronsted lowry acid just means that it donates a proton.
An arrhenius acid dissolves in water to donate a proton
the only difference is that an arrhenius acid must dissolve in water but it still donates a proton so it is considered a bronsted lowry acid
 
        
             
        
        
        
The atomic theory started with Democritus, who stated that all space was made up of indivisible particles called atoms, though Aristotles refuted that statement by saying that matter didn’t exist, he believed in the four elements: air, fire, water, and earth. Then came Dalton, who revived Democritus’s ideas and proposed the law of multiple proportions, he revived the idea that all space was made of atoms. Soon after, J.J Thompson discovered the electron by using cathode rays. Max Planck developed the quantum theory by stating that electromagnetic radiation could only be emitted in quantized form (later called quanta). Einstein furthered this idea with studies of light. Robert Millikan eventually measured the charge of a single electron. Ernest Rutherford used a gold foil experiment and discovered the nuclei, considering his alpha particles were deflected by some object. Niels Bohr made the atomic model with electrons spinning around an atom’s nucleus, Erwin Schrodinger describes how electrons have wave like properties. James Chadwick then discovers the neutron! 
There ya have it!