How do you solve number 1 through 4

Part 1 1. Complete the following table (17 points) State at Diatomic? Metal, Atomic Family Name Room Temp | Yesor no Nonmetal Or Family Number if Metalloid No Name Or Noble gas chlorine 2. Write the symbols of the two elements in the above table that have very similar chemical and physical properties (1 point) Answer __and " 3. Classify the following as Physical or Chemical changes (Put a P or C in answer space) (4 points) a. When Alka Seltzer is added to water, bubbles form Answer b. When hydrogen and nitrogen are mixed at high temperature and pressure ammonia is obtained Answer_ . When water from the ocean evaporates, sodium chloride crystals are left behind Answer_ = d. When two clear and colorless liquids are mixed a solid forms Answer_ 4. Classify the following as Physical or Chemical Properties (Put a P or C in answer space) (3 points) a. Silver metal will turn black after being in the air Answer b. sugar dissolves in water Answer c. Lead is more dense than sulfur