True
As the shorter the bond, the stronger it is hence more energy will be required to overcome this bond
The statement 'The longer the bond, the smaller the bond enthalpy' is true as bond length and bond enthalpy have an inverse relationship. As bond strength increases (with an increase in electron pairs in the bond), bond length decreases. So longer bonds, indicating weaker bonding, have smaller bond enthalpies.
The statement 'The longer the bond, the smaller the bond enthalpy' is true. The bond length and bond enthalpy have an inverse relationship. As the strength of a bond increases with the increase in the number of electron pairs, the bond length decreases. Thus, triple bonds are generally stronger and shorter than double bonds between the same two atoms, and by the same logic, double bonds are stronger and shorter than single bonds.
For example, if we consider the bonds between carbon and various atoms in a group, we find the bond strength typically decreases as we move down the group - C-F has a bond enthalpy of 439 kJ/mol, C-Cl has 330 kJ/mol, and C-Br is at 275 kJ/mol.
The bond energy, essentially the enthalpy required to break the bond, is a representation of its strength. Thus, a longer bond, indicating weaker bonding, will have a smaller bond enthalpy.
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The distance from Santa Maria to Los Alamos, which is 16.25 miles, would be approximately 2615178.4 centimeters when converted using the conversion factor of 1 mile = 160934.4 cm.
In order to convert the distance from miles to centimeters, you need to use conversion factors. We know that 1 mile is equivalent to approximately 160934.4 centimeters. Therefore, to find the distance from Santa Maria to Los Alamos in centimeters, you would multiply the number of miles by the number of centimeters in a mile.
The calculation would look like this:
16.25 miles * 160934.4 cm/mile = 2615178.4 cm
So, the distance between Santa Maria and Los Alamos is approximately 2615178.4 centimeters.
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b. The nucleus has a negative charge
c. The atom has a dense nucleus
d. Alpha particles can pass through a thin sheet of gold foil
e. All of the above are correct regarding the gold foil experiment
Explanation:
1s 2s 2p
1s 2s 2p1s2 2s1
1s 2s 2p1s2 2s1 2 1 1
1s 2s 2p1s2 2s1 2 1 11s2 2s2
B. sum of the protons and neutrons in an atom.
C. number of protons in an atom's nucleus.
D. mass of the atom
Answer:
C. number of protons in an atom's nucleus.
Explanation:
Atomic number : It is defined as the number of electrons or number of protons present in a neutral atom.
However, when we talk about the atomic number of the ion, it is not equal to the number of electrons as electron can be gained or loosed.
This is why, more appropriately, the number of the protons which are present in the nucleus of the atom is called the atomic number.
For example, Sodium has 11 protons in its nucleus which suggest that the atomic number of sodium is 11.
B) 2
C) 6
D) 9
Answer:
The answer is c) 6
Explanation:
In the expression of the reaction
Energy + 6CO2 + 6H2O → 6O2 + C6H12O6
you can see that to produce a mol of glucose (C6H12O6) you need 6 moles of CO2, which it is the reagent that contains the atom of carbon used to produce glucose. Now you multiply the coefficient 6 by the subscript 1, which is the amount of carbon atoms that the molecule CO2 contains. So you end up with 6 atoms of carbon.