Answer:
LOL YOUR PFP OMG SO FUNNY
Friction because smooth ice provides very little resistance against objects, like ice skates being dragged across its surface.
Answer:
oxygen
Explanation:
I am pretty sure it is that but you should still check
Kelvin = Celsius + 273
60°C +273 = 333 K
Answer:
molar mass of C₃H
₈ = 44 g/mole
Explanation:
Computation of the amount of oxygen that reacts
.
⇒ 75 - 12.5
⇒ 62.5 cm³
Computation of proportion of hydrocarbons
2 mole hydrocarbons 3n+1 oxygen
⇒ 3 n + 1 = [62.5 × 2] / 12.5
⇒ 3 n + 1 = 10
⇒ n = 3
So,
Formula of the hydrocarbon is C₃H
₈
Computation of molar mass of C₃H
₈
⇒ [12×3] + [1×8]
⇒ 44 g/mole