Answer:
oxidation number is correct!! :)
Explanation:
Necesito los puntos es urgente
Chemical energy being changed into light energy would happen during phototsynthesis
Answer:
So, if a rock is changed or broken but stays where it is, it is called weathering. If the pieces of weathered rock are moved away, it is called erosion.
CH3-CH=CH2+Br2--->CH3-CH(Br)-CH2-Br