How many grams of o2 are needed to react completely with 12.8 grams of k? (1 point) k + o2yields k2o be sure to balance the equation.

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

50 pts plz what is the physical state of matter of baking soda.

24 points and brainliest to anyone who can answer under 10 minutes with best ! the table below shows the role of different substances during photosynthesis. substance role during photosynthesis glucose stores chemical energy water combines with glucose to form carbon dioxide chlorophyll traps sunlight which of the following statements would correct one of the roles listed in the table? glucose combines with carbon to form water. chlorophyll reacts with light to produce carbon dioxide. water combines with carbon dioxide during photosynthesis. chlorophyll stores chemical energy needed for photosynthesis.