Contextualization

Chemistry is a fascinating science that permeates our daily lives, whether in our diet, the water we drink, or the soaps we use. Within the chemical universe, bases are substances of great importance and are the object of our study. To delve into this world, we must first understand what bases are and how they are named. So, shall we begin?

Bases, from a chemical standpoint, are substances that, in aqueous solution, release the OH- ion (hydroxide). It was the chemist Johannes Nicolaus Brønsted who developed this definition, which is widely accepted to this day. Bases are present in many everyday products, such as soaps, detergents, cleaning products, and even in foods. However, it is important to note that bases can be dangerous, causing skin burns and serious harm if ingested or inhaled. Therefore, understanding bases is fundamental for their safe use.

The nomenclature of bases is defined by specific rules, which are an integral part of Inorganic Chemistry. Learning to correctly name bases is an important step in understanding and applying Chemistry. Mastering this skill allows for the precise identification and classification of bases, as well as facilitating communication among scientists worldwide.

The application of bases goes far beyond chemistry laboratories or pharmaceutical industries. They are essential in the food industry, water treatment, agriculture, the production of cleaning materials, and many other sectors. Therefore, understanding the nomenclature of bases is not only useful for learning Chemistry but also for practical and professional applications.

We recommend the following sources to deepen your knowledge:

1. Book: "Chemistry & Chemical Reactivity" by John C. Kotz, Paul M. Treichel, and Gabriela C. Weaver. This work has a section dedicated to the nomenclature of inorganic compounds, including bases.

2. Website: "Brazil School - Chemistry" (https://brasilescola.uol.com.br/quimica/) is an excellent source of content about Chemistry in Portuguese, which includes an entire section dedicated to the nomenclature of bases.

3. Video: "Naming Bases" on the channel Chemistry in Action with Prof. Paulo Valim (https://www.youtube.com/watch?v=eNmZ_nXl9V0)

Remember: Chemistry is part of our daily lives. Let's embark on this learning journey together?

Practical Activity

Activity Title: "Naming the Bases - A Chemical Journey"

Project Objective

The project aims to provide students with the opportunity to learn how to name bases in a practical and playful way. Additionally, the activity aims to foster teamwork, time management, communication, and problem-solving skills.

Detailed Project Description

In the first stage, students should research the nomenclature of bases using the suggested sources and others they find. After the research, groups should create a "Chemical Memory Game," in which each pair of cards should contain a base and its respective nomenclature.

Required Materials

• Cardboard or cardboard paper
• Colored pens or markers
• Scissors
• Books or internet for research

Detailed Step-by-Step for Activity Execution

1. Gather in groups of 3 to 5 students.
2. Research the nomenclature of bases using the suggested sources and others you find.
3. Discuss among yourselves until everyone understands the nomenclature of bases.
4. Develop a list of 20 different bases, including the chemical formulas and respective nomenclatures.
5. Game Preparation:
   • Draw 40 identical squares on the cardboard or cardboard paper.
   • Cut out each square. These will be the game cards.
   • On one half of the cards (20 cards), write the chemical formulas of the chosen bases.
   • On the other half (20 cards), write the corresponding nomenclatures.
6. Practice the game within the group. Test the effectiveness of the game in learning the nomenclature.
7. Refine the game based on the playing experience.
8. Finally, present the game to the teacher and the rest of the class. Explore the opportunity to play with other groups.

Project Deliverables

1. Chemical Memory Game: This is the final product of the practical activity. The game must be complete and finished, including the original list of 20 bases with their respective nomenclatures.

2. Project Report: Each group must write a report that explains the entire project implementation process, with the following topics:

   • Introduction: Provide context for the project theme, explaining the nomenclature of bases and its relevance. Justify the project objective and the chosen methodology.

   • Development: Describe in detail how the research was conducted, how the game was developed, and how the playing experience was. Include the list of 20 bases used in the game, with their chemical formulas and respective nomenclatures. Discuss results obtained, difficulties encountered, and how they were overcome.

   • Conclusion: Record your learnings from the project implementation. What was the most challenging aspect? How did teamwork help in project implementation? How do you feel now, after having learned to name bases through this project?

   • Bibliography: List all sources of information used in the project.