The decreasing order of the mass of the molecules are:
Fe2O3>C6H14>CaCO>NO2
Explanation:
Let us calculate the atomic mass of the molecules given:
C6H14 Atomic mass of 1 carbon atom =12.01 amu
so, 6*12+1*14 Atomic mass of hydrogen=1.007
= 86 g/mol
Atomic mass of NO2
= 14+ (2*15.9)
= 14+ 31.8
= 45.8 g/mol
Atomic mass of Fe203
( 2*55.845)+ (3*15.9)
= 159.69 g/mol
Atomic mass of CaCO
40.07+12.0107+15.99
= 68.07g/mol
The decreasing order of the mass of the molecules are:
Fe2O3>C6H14>CaCO>NO2
Answer:
The value for the equilibrium constant for the reaction at 298K .
What would be the value for the equilibrium constant for the following reaction at the same temperature?
Explanation:
The Kc value for the reverse reaction of the first reaction that is:
For the reverse reaction,
So, it is the inverse of the first Kc value.
Hence, the new Kc value is:
Answer is :
Kc=2.5*10^-25.
Answer:
voltage source
Explanation:
establishes an electric potential difference across the two ends of the external circuit and thus causes the charge to flow. The voltage source is the numerical value of this electric potential difference.
Answer:
nine
There are nine orbitals in the n = 3 shell. There is one orbital in the 3s subshell and three orbitals in the 3p subshell. The n = 3 shell, however, also includes 3d orbitals. The five different orientations of orbitals in the 3d subshell are shown in the figure below.
Explanation:
This is what the lewis structure looks like
so Each carbon atom has 4 unpaired electrons available for bonding.
Each of the 3 chlorine atoms has a single unpaired electron available for bonding.
The hydrogen has a single electron available for bonding.
This results in carbon forming 4 single covalent bonds.
The systematic name is trichloromethane.