5. Two chemicals A and B are combined to form a chemical C. The rate, or velocity, of the reaction is proportional to the product of the instantaneous amounts of A and B not converted to chemical C....

Please solve all the 4 parts simultaneously with proper explanation.

Extracted text: 5. Two chemicals A and B are combined to form a chemical C. The rate, or velocity, of the reaction is proportional to the product of the instantaneous amounts of A and B not converted to chemical C. Initially, there are 40 grams of A and 50 grams of B, and for each gram of B, 2 grams of A is used. It is observed that 10 grams of C is formed in 5 minutes. a. How much is formed in 20 minutes? b. What is the limiting amount of C after a long time? c. How much of chemicals A and B remains after a long time? d. At what time is chemical C half-formed?