Acids and Bases Grade 12 Questions, Answers and Notes

Acids and Bases Grade 12 Questions, Answers and Notes pdf:


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What are acids and bases? 

We encounter many examples of acids and bases in our daily lives. Some common examples of household items that contain acids are vinegar (contains acetic acid), lemon juice (contains citric and ascorbic acid), wine (contains tartaric acid). These acids are often found to have a sour taste. Hydrochloric acid, sulfuric acid and nitric acid are examples of acids that are more likely to be found in laboratories and industry.

Understanding Acids

Hydrochloric acid is also found in the gastric juices in the stomach. Fizzy drinks contain carbonic acid, while tea and wine contain tannic acid. People even use acids in an artistic process known as acid etching. In acid etching, a metal is covered in a waxy material that is resistant to acid. The bare metal is then exposed in the desired pattern and the sample is placed in an acid bath. The top layers of the exposed metal are permanently removed, creating the desired image.

Understanding Bases

Bases that you may know about include sodium hydroxide (commonly known as caustic soda), ammonium hydroxide and ammonia. Some of these are found in household cleaning products. Bases are usually found to have a bitter taste and feel slippery (soap is a good example). Acids and bases are also important commercial components in the fertiliser, plastics, and petroleum refining industries. 

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Useful Acids and Bases Grade 12 Questions, Answers and Notes pdf

Acids and Bases Grade 12 Questions, Answers and Notes pdf

Hello Grade 12 Learners. Modern Classroom has everything for you needed to pass your matric exams, tests, assessments, research tasks and assignments under CAPS Curriculum. Feel free to explore all resources for grade 12, such as Study Guides, DBE Past Exam Papers with Memos, and Speech Topics. That’s if you want to know how to pass grade 12 with distinctions in South AfricaModern Classroom

Why passing Grade 12 is very important

Grade 12 ultimately prepares you for the real world out there, and most importantly matric is your ultimate gateway for varsity. You really need good marks in Grade 12 in order to pass well and study what you like. Good Grade 12 marks means good APS Score.

The calculation of an Admission Point Score (APS) is based on a candidate’s achievement in any SIX recognised National Senior Certificate 20-credit subjects (including subjects from the non-designated subject list, e.g. CAT, Tourism, Hospitality Studies and Civil, Electrical & Mechanical Technology, etc.), by using the NSC seven-point rating scale. Life Orientation is a 10-credit subject and may not be used for calculating the APS. Life Orientation is also not a faculty-specific subject requirement.

Have you made your career choice yet?

Now that you are in your final year of studies, have you made up your mind about what career you want to pursue after matric? Have a look at below questions and click on the links for more information:

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5 Ways to Pass Matric with Distinction?

  1. Teach your friends the subject you know the most. Teaching others makes you learn faster
  2. Manage your time properly. Learn to focus at one task at a time.
  3. Gather all learning material about a subject and try answering previous exam papers and tests
  4. Ensure you do have 8 hrs of sleep every night so that you will always be productive.
  5. Remove all destructions around you, such as: TV, CellPhone, Noisy people, etc. If you cant, go to the library or study at school.

Other Grade 12 Past Papers and Memos

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