Question

an element that forms an oxide that is a reactant in photosynthesis
plz tell the answer tomorrow my exam

Answer 1

Answer:

Carbon dioxide gas is an element which forms and oxide that is a reactant in photosynthesis...

i hope it will help u..

Answer 2

Carbon is the element which forms the oxide which is Carbon Dioxide (CO2) which is essential reactant for photosynthesis.

Pls don't write answer as CO2 its wrong the element should be C as CO2 is not element.