Answer:
A
Explanation:
A chemical change is when a new substance is created, which often has its own chemical properties, so A is the correct answer.
Answer:
The First choice is correct
Explanation:
That is the closest example of what is shown
Answer:
The center of the atom contains the nucleus so yes
Explanation:
Answer: d
explanation: in both reactants and products there are 2 hydrogen and 2 chlorine atoms
Answer: The bubbles produced are most likely due to oxygen.
Explanation:
Photosynthesis is a phenomenon in which green plants containing chlorophyll use sunlight as a source of energy to convert carbon dioxide and water to form glucose and oxygen.
The balanced chemical reaction for photosynthesis is:

Thus the bubbles produced are most likely due to oxygen.