Give the disadvantages of using cisplatin as an anti-cancer drug and give examples of how newer platinum-based drugs attempt to overcome these disadvantages. (6 marks)​

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins