Question

Name the following: 1.The metal that is liquid in state.______ 2.Formed when iron reacts with oxygen in the presence of moisture._____ 3.Forces exerted by objects not in contact.____ 4.A metal that is used in thermometer._____ 5.Disease causing microorganisms._______ 6. A book of carrying information about endangered species.________ 7. Empty structure in the cytoplasm._______ 8. The supply of water to the crops.______​

Answer 1

Explanation:

Sodium is a silver-colored metal which is soft enough to cut with a knife. It is an extremely reactive metal, and is always found naturally in ionic compounds, not in its pure metallic form. Pure sodium metal reacts violently (and sometimes explosively) with water, producing sodium hydroxide, hydrogen gas, and heat:

2Na(s) + 2H2O(l) ——> 2NaOH(aq) + H2(g)

Chlorine is a poisonous, yellow-green gas, with a very sharp odor, and was used in gas warfare during World War I.

Sodium and chlorine react with each other, however, to produce a substance that is familiar to almost everyone in the world: sodium chloride, or table salt:

2Na(s) + Cl2(g) ——> 2NaCl(s)