Acids And Bases Flashcards
What is a acid?
Chemical compounds found naturally in plants or divide from minerals. The sour taste in men in fruits and vegetables, lemon for instance, is due to various types of acids present in them. Uses: Manufacture of dyes, Drugs, paints, fertiliser, as a food preservative, in soft drinks, in cooking
What is a base?
Their oxides and hydroxides of metal. Soluble bases are called alkali. Example, sodium hydroxide, copper oxide. They are better in taste and so be to touch. Seawater and detergents are some examples of substances that are basic.
What are salts?
They are the ionic compounds formed when an acid reacts with a base. Example sodium chloride, zinc chloride et cetera. Uses, and food preservatives, everything next year, and cooking food, manufacture of the fertilises
What colour does an acid turns litmus paper.
Red.
What colour does bases turn litmus paper
Blue.
What texture does bases have?
They have a slimy or slippery texture 
How does acid or alkaline be tested on the ph scale?
Using indicators like litmus paper and universal indicators. Acids and bases react together to form salts and other products to.
What is the difference in acids and bases in solutions.
Acids: Tastes sour, turns litmus paper red, reacts with some metals to give off hydrogen gas.
Bases: Tastes bitter, turns litmus paper blue, feels slimy and slipper when touched.
What do use a pH scale for?
We use the pH scale to measure the materials acidity or base.This scale rates the colour of the indicator when acidity is measured. The PH scale starts from 1 to 14. 1-6 is acid and 7 is neutral and the rest is bases. 
What does PH stand for
Potential of hydrogen.
What is blue or red litmus paper used for?
Red and blue litmus paper is used to test whether a substance is an acid , a base or a neutral.
What are some properties about a acid and neutrals.
They are liquids
Acids can be strong or weak. Strong acids are more dangerous than weak acids.
They have a sour taste.
They feel rough on the skin.
They contain hydrogen ions..
They usually react with metals to form salts.
They can universal indicator solution from green to red.
They react with bases to form a salt and water. They conduct electricity.
Give us examples of acids.
Lemon and orange juice, vinegar, swimming pool acid, tartaric acid, battery acid and hydrochloric acid.
Properties of bases.
They are soluble bases – known as alkaline.
They taste bitter.
They feel soapy and slippery on the skin.
Many are dangerous to feel or taste.
They turn universal indicator solution from green to blue or purple.
They have a pH of more than seven.

Examples of bases
Washing powder, bicarbonate of soda, soap, bleach, household cleaners, ammonia.
