Chemical reactions chemical equilibrium occurs when the rates of the reactions
a. equal out in both directions.
b. increase from reactant to product.
c. increase from product to reactant.
d. decrease from reactant to produ

What is the independent variable in this investigation? mass volume sample number substance density

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

Scientist think that animals with remarkably similar embryo development probably shared a common ancestor