Answer:
A is oxidation . B is reduction
Explanation:
A will be oxidation agent because there is gain of
electrons
B will be reducing agent because there is loss of
electrons.
Answer:List of isotopes
Nuclide Z Isotopic mass (Da)
Excitation energy
63Cu 29 62.9295975(6)
64Cu 29 63.9297642(6)
65Cu 29 64.9277895(7)
Explanation:
Answer:
can only accommodate 2 electrons
Explanation:
It is known that rate of effusion of gases are inversely proportional to the square root of their molar masses.
And, half of the helium (1.5 L) effused in 24 hour. So, the rate of effusion of He gas is calculated as follows.
= 0.0625 L/hr
As, molar mass of He is 4 g/mol and molar mass of
is 32 g/ mol.
Now,

= 2.83
or, rate of
= 
Rate of
= 0.022 L/hr.
This means that 0.022 L of
gas effuses in 1 hr
So, time taken for the effusion of 1.5 L of
gas is calculated as follows.
= 68.18 hour
Thus, we can conclude that 68.18 hours will it take for half of the oxygen to effuse through the membrane.
Hey there!
It is a single- displacement reaction , so by balancing the above equation:
2 NaBr + Cl2 = 2 NaCl+ Br2