What alternative will the chemical equation correspond to only a homogeneous mixture and not a chemical reaction:

Embryos of different species look very similar, which shows that the organisms share a ancestor.

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Match the name of the following compound:   mgso4  · h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate