Please do not skip any step solution, and please write the solution step on one piece of paper without use type by using the computer. This is because I scare I will not understand the concept. Thank you very much.

Question 3. (8 marks) The following question concerns the Period 2 elements, (a) Write the conjugate acid for the followings Conj. Acid 1 H.PO. 11. NO. HIL HS IV. OH V H2O [5 marks) CEE 20005 En Chemistry Test 1 Sem 1 2022 (b) A 5.00 g sample of lithium. containing the two isotopes lithium-6 and ithium-7, was found to contain 0.375g of the isotope lithium-6. Isotope Relative isotopic Mass Lithium-6 6.015 Lithium-7 7.016 Calculate the relative atomic mass of lithium for this sample. Give your answer to an appropriate number of significant figures. [3 marks]