Запишите кинетическое уравнение и определите как изменится скорость реакции: 2NO(г) + Cl2 (г) = 2NOCl (г) а) при увеличении концентрации газа NO в 4 раза; б) при уменьшении парциального давления Cl2 в 4 раза.

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).

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

the answer is b & c i believe : )