Instructions: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
Input: If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (c), 6 atoms of carbon many atoms of carbon (c) should be in the products.
Output:
If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon (C) should be in the products?