Answer:

1. IC (clue word ACID)

6.  IC

2.  MC

7.  MC

3. IC

8.  MC

9. MC

5. IC

Meanings

1. Sodium chloride, commonly known as salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g/mol respectively, 100 g of NaCl contains 39.34 g Na and 60.66 g Cl

2. Methane is a chemical compound with the chemical formula CH₄. It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas.

3. dihydrogen monoxide" means "two hydrogen, one oxygen": the prefix di- in dihydrogen means "two", the prefix mono- in monoxide means "one", and "oxide" designates oxygen in a compound

4. Sulfur dioxide or sulphur dioxide is the chemical compound with the formula SO ₂. It is a toxic gas responsible for the smell of burnt matches. It is released naturally by volcanic activity and is produced as a by-product of copper extraction and the burning of sulfur-bearing fossil fuels

5. Lithium Fluoride MC 10Ammonia Deepen or Lithium fluoride is an inorganic compound with the chemical formula LiF. It is a colorless solid, that transitions to white with decreasing crystal size. Although odorless, lithium fluoride has a bitter-saline taste. Its structure is analogous to that of sodium chloride, but it is much less soluble in water. It is mainly used as a component of molten salts.[4] Formation of LiF from the elements releases one of the highest energy per mass of reactants, second only to that of BeO.

6. Dinitrogen tetroxide, commonly referred to as nitrogen tetroxide, and occasionally as amyl, is the chemical compound N₂O₄. It is a useful reagent in chemical synthesis. It forms an equilibrium mixture with nitrogen dioxide. Its molar mass is 92.011 g/mol

7. Cobalt(II) iodide or cobaltous iodide are the inorganic compounds with the formula CoI₂ and the hexahydrate CoI₂(H₂O)₆. These salts are the principal iodides of cobalt

8. Nickel(II) chloride is the chemical compound NiCl₂. The anhydrous salt is yellow, but the more familiar hydrate NiCl₂·6H₂O is green. Nickel(II) chloride, in various forms, is the most important source of nickel for chemical synthesis.

9. pure Water - H2O, is a pure substance, a compound made of hydrogen and oxygen.