Answer:
A. True
B. True
C. False
D. False
Explanation:
Electrons travel around the nucleus in circular orbits and moves from one orbit to another orbit when they absorb energy or lose energy. The Bohr atom is the model currently accepted for electrons in atoms because this model provides the right information about presence of electrons around the orbits. Scientists know the energies of electrons as well as the areas (orbitals) where the electrons are probably located with the help of new technology.
Answer:
Scientists must look in their experiment/data to check for accuracy because they don't want to make any mistakes, and most importantly have to make sure they have the right information to proceed.
Explanation:
^
328 % means 0.328 g of KCN in 100 g of solution
0.328 g of KCN ---------> 100 g of solution
1120 * 10^-3 g of KCN ------> (100 / 0.328) * 1120 * 10^-3
= 341 g of solution
Answer:
Explanation:
Originally Rutherford thought that the particles would fly straight through the foil. However, he found that the particles path would be shifted or deflected when passing through the foil. This is due to the fact that like charges repel each other.
The molality of the solution is 0.0833 m
calculation
molality=mass of the solute/mass of the solvent
= 25g/300 =0.0833m