How many grams of carbon dioxide are needed to extract 8 grams of oxygen in the photosynthesis reaction?
Deliverance done (written and equated reaction equation, set proportion and appropriate calculating operations, units of measurement please)

Two liquids are poured into a beaker. after a few seconds, the beaker becomes warm. which of the following best describes this reaction? a. an exothermic reaction b. a decomposition reaction c. an endothermic reaction d. a single-displacement reaction