Answer:
C. Sold solution
Explanation:
Using method of elimination;
A. Pure substance.
Bronze is not a Pure substance because the proportions of copper and tin are not the same in all bronze. This option is wrong.
B. Colloidal Suspension
This option is wrong. Colloidal suspension involves one substance dispersed in another.
C. Sold solution
The bronze bell is an alloy. This definition suitable represents it. It is a solid solution containing copper and tin. This is the correct option.
D. Heterogeneous Mixture
Bronze is a mixture, however it is homogeneous and not heterogeneous. his is because one can not distinguish the copper from the tin in the mixture.
To calculate the amount of heat transferred when an amount of reactant is decomposed, we must look at the balanced reaction and its corresponding heat of reaction. In this case, we can see that 252.8 kJ of heat is transferred per 2 moles of CH3OH used. When 22 g of CH3OH is used, 86.9 kJ is absorbed.
