Answer:
Ionic bonding is the complete transfer of valence electron
Explanation:
In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.
I believe the strength comes from its ability to break the particle bond in the molecule. So the bond dissociation energy
Answer:
28 g/mol, N2
Explanation:
Given data:
Volume of gas = 5.0 L
Mass of gas = 6.3 g
Pressure = 1 atm
Temperature = 273 K
Molar mass of gas = ?
Solution:
We will calculate the density first.
d = mass/ volume
d = 6.3 g/ 5.0 L
d = 1.26 g/L
Molar mass:
d = PM/RT
M = dRT/P
M = 1.26 g/L× 0.0821 atm.L/mol.K × 273 K/ 1 atm
M = 28 g/mol
Molar mass of N₂ is 28 g/mol thus given gas is N₂.
Answer:
97.5 km/h
Explanation:
The time taken by gino = 6 hours
Speed of Gino = 65 km/h
The expression for distance is :-
Distance = Speed x Time
So, The distance covered by Gino = 65 km/h x 6 hrs = 390 km
The same distance is covered by Lorry.
Time taken by Lorry is 2 hrs fewer than Gino = 4 hours
Speed = Distance/Time = 390 km/4 h = 97.5 km/h
<u>97.5 km/h is the average speed of Lorry for the whole journey.</u>