The soulustion. turn cloudy due to the precipitation of Sulphur.
Unfortunately, you haven't shared any data list which would make braunly users able to help you. The only thing I can suggest you is to write the neutralization reactions, this can make you understand the calculations more or less clearly. Please, next time check your attachments carefully.
Answer:
A communicable disease
Explanation:
Diseases that can be transferred are known as communicable diseases.
