Answer:
C) 1.15 × 10⁻⁷ mm
Explanation:
Step 1: Provided information
Average separation between oxygen and nitrogen atoms: 115 pm
Step 2: Change the distance to meters (SI standard unit)
Using the conversion 1 m = 10¹² pm.
115 pm × (1 m/10¹² pm) = 1.15 × 10⁻¹⁰ m
Step 3: Transform the distance to millimeters
Employing the conversion 1 m = 10³ mm.
1.15 × 10⁻¹⁰ m × (10³ mm/1 m) = 1.15 × 10⁻⁷ mm
Answer:
The particle's velocity is calculated to be 2 m/s,
Explanation:
Kinetic energy refers to the energy an object possesses due to its movement. The formula for kinetic energy is:

Where:
m = the mass of the object
v = the object's velocity
A particle with mass m has a kinetic energy that is double its mass.




Since the velocity is measured in m/s, we determine that the particle's speed is 2 m/s.
⁴⁰Ar
N(e)=18
N(p)=18
N(n)=40-18=22
⁴⁰K
N(e)=19
N(p)=19
N(n)=40-19=21
⁴⁰Ca
N(e)=20
N(p)=20
N(n)=40-20=20
At equilibrium, [R] = [Z] > [Q]. Explanation: In analyzing the equilibrium conditions, the provided reaction of X(g) + 2 Q(g) ⇄ R(g) + Z(g) establishes that at a temperature of 50ºC, the equilibrium constant Kc = 1.3 x 105. This indicates a scenario where the concentrations of the products greatly exceed those of the reactants.