Please help me answer these 3 questions

Explanation:

Photosynthesis is the process by which green plants manufacture their food using carbon dioxide and water in the presence of sunlight.

It is expressed using the equation below;

      6CO₂   +   6H₂O     →      C₆H₁₂O₆  +  6O₂

         reactants                      products

1. Compounds consumed are carbon dioxide and water.

2. Product is glucose and oxygen.

3. Most organism obtain their nourishment directly and indirectly from photosynthetic activities.

Plants are the producers of food in the ecosystem. If the process of photosynthesis does not occur, there is no way other organisms will obtain their own nourishment.

the answer for sodium is 0.186

the answer for rubidium is 0.251

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.