Answer:
Energy cannot be converted from one form to another.
What’s the question cuz I’m confused lol
Sulfanilamide, an antibacterial drug, was being used safely in the treatment of streptococcal infections.
Given,
1 gram remain out of 16 grams after 237 seconds.
So,
1g -> 2g -> 4g -> 8g -> 16g
So, 4 half lives have taken palce.
So,
we divide 237 by 4 and we get our answer.
So,
234 / 4 = 59.25 ≈ 59.3
So, the answer is (2) 59.3 seconds
Answer: The third one, changes can occur to physical properties but the chemical composition remains the same.
Explanation: Chemical changes change the chemical composition. Physical changes do not.