I believe the best choice will be option 3
i'm unsure of your statement, but i believe that the statement is false. A rake would add more physical activity, since you're using both leg muscles while walking, and arm muscles.
Molar mass NaOH = 23 +16+1 = 40g/mol
1.5mol = 40*1.5 = 60g That is the correct answer.
No it cannot. All it will do is build muscle which= 0 flexibility and also the muscle you build will eventually turn to fat if you stop working out.
