Question

16. Write the formula for the following compounds Zinc Oxide Sulfur dioxide Hydrochloric acid

Answer 1

16. Zinc Oxide (ZnO)

Sulfur Dioxide (SO₂)

Hydrocloric acid (HCl)

Dihydrogen monoxide (H₂O)

Magnesium hydroxide (Mg(OH)₂)

17. A homogeneous mixture is a solution with their compounds are completely dissolved and you can´t distinguich each component. A heterogeneous mixture all their components are visible and they can´t dissolve.

Homogeneous mixture = NaCl in water (soluble).

Heterogeneous mixture = CaCO₃ in water. (insoluble)

18. A hydrate is a compound that contain water and an anhydrous is a compound that is free of water.

19. Decantation. Action of separation of compounds of a mixture in solid and liquid state.

Filtration. Action of remotion of a solid particle in a liquid through a filter.

21. Air = Homogeneous

Chocolate Chip Cookie = Heterogenous

Rum and Coke Cola = Homogeneous

Glass = Homogeneous