Please change the subject from chemistry.
You have to take the theory and practical driving tests when you obtain 6 points on your licence in the span of 2 years.
Answer:-
27.38%
Explanation:-
Molecular weight of sodium hydrogen carbonate NaHCO3
= 23 x 1 + 1 x 1 + 12 x 1 + 16 x 3
= 84 gram
Total sodium Na present in NaHCO3 = 23 x 1 = 23 gram
Percentage of sodium present=
Total sodium x 100/ (Total molecular weight)
= 23 x 100 / 84
= 27.38 %
Triple helix is the tertiary structure out of those choices
Using the equation gpe = mgh
(Gravitation Potential Energy = mass x acceleration due to gravity which is 10 on earth x height)
Gpe = 8kg x 10 x 10m = 800