Which of the following is required for dark reactions to take place?
a. light
b. oxygen
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d. water

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car