Is water a molecule or a compound? Justify your answer. What are the properties of acids and bases?

Here are the answers to your questions:

10. Is water a molecule or a compound? Justify your answer
Water is both a molecule and a compound.

• It is a molecule because it consists of two or more atoms (two hydrogen atoms and one oxygen atom) chemically bonded together.
• It is a compound because it is formed from two or more different elements (hydrogen and oxygen) chemically bonded together in a fixed ratio ($\text{H}_2\text{O}$).

1. What are the properties of acids and bases?

• Properties of Acids:

  • Taste sour.
  • Are corrosive.
  • Turn blue litmus paper red.
  • Have a pH value less than 7.
  • React with metals to produce hydrogen gas.
  • React with bases to form salt and water.

• Properties of Bases:

  • Taste bitter.
  • Feel slippery or soapy.
  • Turn red litmus paper blue.
  • Have a pH value greater than 7.
  • React with acids to form salt and water.
  • Strong bases are corrosive.