Flashcards in Acids And Bases 1 chapter 24 Deck (12):
What are alkalis?
They re bases that dissolve in water.
Name 3 indicators.
Litmus, methyl orange, phenolphthalein.
What give the exact pH of substances?
pH sensors with data loggers or computers.
What is neutralisation?
When an acid is counteracted or neutralised by a base.
When is a salt formed?
It is formed when the hydrogen in an acid is replaced by a metal.
What is a base?
It is the chemical opposite to an acid.
What does an indicator do?
It shows by means of colour change the acidity or basicity of a substance.
What does a pH scale show?
It shows the different levels of acidity and basicity. (0-14.)
Give 3 examples of acidic substances.
Battery acid, lemon juice, vinegar.
Give 3 examples of basic substances.
Washing soda, toothpaste, oven spray.
Give 3 examples of a neutral substance.
Blood, distilled water, milk.