They are all true so all the above
Answer:
382.5J
Explanation:
<em>Use the formula:</em>
E = mcΔθ or Q = mcΔT
m = 100g
c = 0.45 J/g°C
ΔT or Δθ = 110 - 25 = 85°
<em>Sub in the values:</em>
E = 100 × 0.45 × 85
= 382.5J
Answer:
20.1169 Km/hr
Explanation:
<em>10 laps around a 1320-foot track in 12 minutes.</em>
<em />
Total distance = 10 * 1320 foot = 13200 foot
Time = 12 minutes
Converting to Kilometers and hour;
1 Foot is equal to 0.0003048 Kilometers;
13200 foot = x kilometer
Total distance = 4.02336 kilometer
Time = 12 / 60 = 0.2 hour
Speed = Distance / Time = 4.02336 / 0.2 = 20.1169 Km/hr
Bestie since it’s Cl2, put 2 next to KCl. That means you need to 2 moles of K, so put 2 next to KI. That’s it
Answer:
D
Explanation:
The potential energy curve of a system of atoms define the potential energy of the atoms with respect to the inter-nuclear separation. The minimum point of the curve represents the equilibrium bond length of the bond.
The energy of the system depends on the distance between the two interacting atoms.
Looking at the potential energy curve for hydrogen molecule in option D, we can assert that a chemical bond indeed exists between the two atoms of hydrogen and the minimum point of the curve is the equilibrium bond length of the bond.