Explanation:
ooohhhh it's free points,,,thank you mwahhh hahahahahaha jokeee
sorry I don't have any ideas
Data:
Q = 402.7 J → releases → Q = - 402.7 J
m = 16.25 g
T initial = 54 ºC
adopting: c = 4.184J/g/°C
ΔT (T final - T initial) = ?
Solving:
Q = m*c*ΔT
-402.7 = 16.25*4.184*ΔT
-402.7 = 67.99*ΔT
![\Delta\:T = \frac{-402.7}{67.99}](https://tex.z-dn.net/?f=%5CDelta%5C%3AT%20%3D%20%20%5Cfrac%7B-402.7%7D%7B67.99%7D%20)
![\boxed{\Delta\:T \approx -5.92\:^0C}](https://tex.z-dn.net/?f=%5Cboxed%7B%5CDelta%5C%3AT%20%5Capprox%20-5.92%5C%3A%5E0C%7D)
If: ΔT (T final - T initial) = ?
![-5.92^0 = T_{final} - 54^0](https://tex.z-dn.net/?f=-5.92%5E0%20%3D%20%20T_%7Bfinal%7D%20-%20%2054%5E0%20)
![T_{final} = 54^0 - 5.92^0](https://tex.z-dn.net/?f=%20T_%7Bfinal%7D%20%3D%2054%5E0%20-%205.92%5E0)
Answer:
2K + 2H₂O → 2KOH + H₂
Explanation:
The reactants are:
Potassium metal = K
Water = H₂O
The products are:
Potassium hydroxide = KOH
Hydrogen gas = H₂
The reaction equation is given as;
Reactants → Products
2K + 2H₂O → 2KOH + H₂
The reaction is a single displacement reaction
Answer:
-10 m/s2
Explanation:
The acceleration is taken as −10 m/s2
Answer:
G wind turbine
Explanation:
they get mechanical energy fron the wind the turns into electrical energy