In the 1H-13C HSQC spectrum of menthol : H1 comes at 1.8 ppm.
H1 comes at 4.2 ppm.
In the methylene CH2 at position 6, the two protons H6 are equivalent.
In the methylene CH2 at position 3, the two protons H3 are diastereotopic.
C4 comes at 31 ppm.
C4 comes at 20 ppm.
C2 comes at 48 ppm.

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Higher temperature = molecules move around faster. and vice versa.

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -