5 is the atomic number, 11 is the atomic mass and boron is the element
Answer: 83%
Explanation:
The detailed solution is shown in the image attached. First we must work out the balanced reaction equation because accurate solution of the problem must be based on the stoichiometry of the reaction. From the given concentration and volume of reactants, we calculate the amount of substance reacted hence identify the limiting reactant. Lastly we use simple proportion to obtain the theoretical yield of the precipitate. This is now used to calculate the actual yield as shown in the solution attached.
They mimicked the flight of birds.
The heat of fusion for water is the amount of energy needed for water to :
c.melt
A solid, but they are constantly vibrating