Answer:
Percentage yield =58.7 %
Explanation:
moles of calcium carbonate as a reactant =
as per molar equation , 0.2068 moles of calcium carbonate produces 0.2068 moles of CaO .
amount of CaO = 0.2068 mole x (40.078+15.999) g/moles = 11.598 gram
percentage yield = actual yield / theoritical yield = 6.81/ 11.598 = 0.587 or 58.7 %
Answer:
Something like table salt (NaCl) is a compound because it is made from more than one kind of element (sodium and chlorine), but it is not a molecule because the bond that holds NaCl together is an ionic bond. If you like, you can say that sodium chloride is an ionic compound.
Explanation:
Technology is anything made my man to make tasks easier. So yes, a screwdriver is technology.
Answer:
See explanation
Explanation:
The use of Uranium - 234 to generate electricity depends on a fission reaction. The uranium nuclide is bombarded by fast moving neutrons leading to a chain reaction. Control rods and moderators are used to keep the nuclear reaction under control.
As the nuclear reaction proceeds, heat is generated and steam is consequently produced. This steam is used to turn a turbine and electricity is thereby generated.