Salts and Their Uses

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is produced when hydrochloric acid reacts with sodium hydroxide?

Calcium carbonate

Sodium chloride and water (correct)

Sodium bicarbonate

Sodium sulphate

Common salt is chemically known as magnesium sulphate.

False

Which of the following is a strong acid?

Baking soda

Lemon juice

Vinegar

Sulfuric acid (correct)

Oven cleaner contains a weak base called sodium hydroxide.

False Signup and view all the answers

What is the chemical name for alum?

Aluminium sulphate Signup and view all the answers

_____ is used for bath salts and as a laxative.

Epsom salts Signup and view all the answers

What is the pH range of acids?

Below 7 Signup and view all the answers

___ reacts with acids to produce carbon dioxide gas.

Baking soda Signup and view all the answers

Match the common salts with their uses:

Borax = Cleans and disinfects small cuts Chalk = Used as blackboard chalk and building material Washing soda = Softens water for washing clothes Plaster of Paris = Used for coating walls and ceilings Signup and view all the answers

Match the following substances with their type:

Vinegar = Weak acid Sodium hydroxide = Strong base Lemon juice = Weak acid Sulfuric acid = Strong acid Signup and view all the answers

Which property describes metals being able to be drawn into wires?

Ductile Signup and view all the answers

Mercury is a solid metal at normal temperatures.

False Signup and view all the answers

What is the chemical symbol for gold?

Au Signup and view all the answers

________ is a reddish metal known for its excellent conductivity.

Copper Signup and view all the answers

Match the following metals with their primary use:

Iron = Making steel for tools and buildings Copper = Electric wires Aluminium = Aircraft construction Tin = Coating food cans Signup and view all the answers

Which of these is NOT a property of metals?

Brittle Signup and view all the answers

Lead is a light, soft metal used for diving weights.

False Signup and view all the answers

Name one common alloy that includes iron.

Steel Signup and view all the answers

Most metals are _________, meaning they can be polished to a shine.

lustrous Signup and view all the answers

What is the state of most metals at normal temperatures?

Solid Signup and view all the answers

Study Notes

Salts

A salt is a compound formed when an acid reacts with a metal or a base
Example: reaction between sodium hydroxide and hydrochloric acid produces sodium chloride and water
Common salts found in homes:
- Alum - used to stop bleeding from small cuts
- Common salt - Used in cooking to enhance food taste
- Chalk - used as blackboard chalk
- Plaster of Paris - used for coating walls and ceilings, making models and casts
- Washing soda - softens water for washing clothes and cleanses and disinfects small cuts
- Borax - cleanses and disinfects small cuts
- Epsom salts - used for bath salts and laxatives
- Saltpeter - used as a garden fertilizer

Acids, bases, and salts - What you have learned

An acid is a substance that reacts with metals to produce a salt and a base
A base is a substance that dissolves in water
Strong acids and alkalis are dangerous - they burn your skin and damage your eyes
An indicator changes colour to show if a substance is an acid or a base.

Soap

Soap is a salt made by reacting sodium hydroxide with fatty acids from heating fats and oils

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

This quiz covers the concept of salts, including their formation from acids and bases, and various common salts found in households. Understand the importance and applications of salts in everyday life, while also reviewing the reactions involved in their creation. Test your knowledge on acids and bases related to salts.