Science Test Flashcards
Some acids are ?
Corrosive. They can burn through solid objects.
What is an acid ?
Acids are common substances which are widely used in everyday life. Acids release hydrogen atoms.
Weak acids are found in ?
Many different foods.
What is a dilute acid ?
A dilute acid is one which contains a large amount of water and a small amount of acid. The opposite of dilute is concentrated.
What is an alkali ?
Alkalis are substances that are the opposite of acids. Alkalis are said to be caustic because they can burn through skin and damage other materials..
What is a base ?
A base is a substance with a soapy feel (it is caustic ). A base neutralises an acid.
Bases which are …
Soluble in water are called alkalis !!!
Bases release ?
Hydroxide ions
The stomach is protected from acids by ?
A layer of mucus on the stomachs walls.
Bases are used to ?
Dissolve grease and dirt.
Gastric Juices in your stomach help to ?
Digest or break down the food you eat.
