Basic copper carbonate is decomposed by acids, such as solutions of hydrochloric acid HCl, into the copper(II) salt and carbon dioxide. In 1794 the French chemist Joseph Louis Proust (1754–1826) thermally decomposed copper carbonate to CO2and CuO, cupric oxide.
Answer:
A. .2 M/s2
Explanation:
Force = mass x acceleration
The force is given as 20 N and tthe mass as 100kg
Solve for accelartion as 20/100 = .2
(Also wrong subject this is a Physics problem)
The heat gained or lost by a substance undergoing a change in temperature is:
Q = mCpΔT
The heat lost by the iron is equal to that gained by water. The Cp for water is 4.186 Joules/gram
75 x 4.186 x (22.24 - 16.95) = -93.3 x Cp x (22.24 - 65.58)
Cp = 0.411 J/g
The heat capacity of iron is 0.45 J/g
%Error = [(0.45 - 0.41) / 0.41] x 100
%Error = 9.76%
The answer is C.204.0g
Have a nice day
Answer:
ΔT = Tfinal − Tinitial = 150°C − 35.0°C = 125°C
given the specific heat of iron as 0.108 cal/g·°C
heat=(100.0 g)(0.108 cal /g· °C )(125°C) =
100x 0.108x125= 1350 cal