Answer: Nothing
Explanation:
Cobalt-60 emits γ radiation and is used in many applications including cancer treatment: There is no change in mass number or atomic number during the emission of a γ ray unless the γ emission accompanies one of the other modes of decay.
The total mass of magnesium chloride is 95.21g/mol
The mass of chlorine is 35.45g/mol
To find the mass percent of chlorine, divide its molar mass by the total mass of the substance and multiply the result by 100:
(35.45/95.21)(100)= 37.2%
Answer:
the number of protons equals the number of
electrons
Explanation:
Because these particles have the same but opposite charges, equal numbers cancel out, producing a neutral atom.
Answer:
25002m
Explanation:
V = 100 km/h
Converting to m/s, we have
V = (100 x 1000)/3600 = 27.78m/s
t = 15mins = 15 x 60 = 900secs
Displacement =?
Velocity = Displacement /Time
Displacement = Velocity x time
Displacement = 27.78 x 900
Displacement = 25002m
Since displacement and distance are measured in same unit, the distance between A and B is 25002m
