acids and alkalis

• What is an acid?

  An acid is a substance that donates hydrogen ions (H+) in a chemical reaction.
• What is an alkali?


  A chemical substance that can neutralize acids
• What pH is an acid?

  Below 7
• What pH is an alkali?

  8-14
• What colour does the universal indicator turn in a acid?

  Red for stronger acids and yellow for weaker acids
• What colour does the universal indicator turn in an neutral solution?

  Green
• What colour does the universal indicator turn in an alkali?

  Blue
• What is the general equation for the neutralisation reaction?

  Acid + Base -> Salt + Water
• What is an example of a lab acid?

  Hydrochloric acid
• What is an example of an lab alkali?

  Sodium hydroxide
• What is a example of a everyday acid?

  Vinegar
• What is an example of an everyday alkali?

  Soap
• What are some uses of acids?

  Cleaning, pH regulation, food preservation, and chemical synthesis.
• What are some uses of alkalis?


  Cleaning, neutralizing acids, making soap.