135 g of aluminum (specific heat = 0.900 J/g°C, initial temperature = 400°C) is mixed with 168 g of water (specific heat = 4.186 J/gºC). When equilibrium is reached, the system has a
temperature of 80°C. Find the initial temperature of water.

The dispersed phase is liquid and dispersed medium in milk is liquid

What are the statements?

Answer is: value of q is 5·10⁻⁶m.chemical reaction: mg²⁺(aq) + co₃²⁻(aq) → mgco₃(s).c(mg²⁺) = 2.5·10⁻³ m; concentration of magnesium cations.c(co₃²⁻) = 2.00·10⁻³ m; concentration of carbonate anions.q = c(mg²⁺)  · c(co₃²⁻).q = 2.5·10⁻³ m  · 2.00·10⁻³ m.q = 5·10⁻⁶m.q = 0.000005 m.