The compound sb4o5cl2(s), which has been investigated because of its interesting electrical properties, can be prepared by warming a mixture of antimony(iii) oxide and antimony(iii) chloride, both of which are solids. what is the coefficient of antimony(iii) oxide in the balanced equation for the reaction?

5Sb2O3 + 2SbCl3 -> 3Sb4O5Cl2

The coefficient of Sb2O3 in the equation is 5.

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e