Answer:
14
Explanation:
There are 4 quantum numbers:
<em>n</em>: principal quantum number - describes the electron shell(varies from 1 to 7);
<em>l</em>: azimuthal quantum number - describes the subshell (varies from 0 to 3);
<em>m</em>: magnetic quantum number - describes the specific orbital (varies from -l to +l passing by 0);
<em>s</em>: spin quantum number - describes the spin of the electron (-1/2 or +1/2).
In each orbital (described by m) the maximum number of electrons is 2, so, for subshell 3, the magnetic numbers are -3,-2,-1,0,+1,+2, and +3. So there are 7 orbitals. The maximum number of electrons that can have n=5 and l= 3 is 14.
Molar mass CO2 = 12 + 16 x 2 => 44.0 g/mol
1 mol ----------- 44.0 g
2.1 mol --------- ( mass CO2)
mass CO2 = 2.1 x 44.0 / 1
mass CO2 = 92.4 / 1
= 92.4 g of CO2
hope this helps!
Answer:
See explanation
Explanation:
We must take into account the order of stability of free radicals. The order of stability of free radicals is;
Tertiary>secondary>primary> methyl.
As a result of this, structure 1 involving a tertiary radical leads to the more abundant product as shown.
Answer:
B
Explanation:
When it freezes, it will be a solid. The molecules will barely move, not as much as in the other answer choices.
Answer:- Mass of copper piece is 290 gram.
Solution:- We know that, mass = density * volume
density of copper is given as 8.96 gram per mL.
Volume of copper piece is the rise change in volume.
Volume of copper piece = 137 mL - 105 mL = 32 mL
Let's multiply the volume by density to calculate the mass of copper:
mass of copper =
mass of copper = 286.72 g
Volume has two significant figures, so if we round the mass to two significant figures then it becomes 290 g.