What is a chemical equation? When do students in Vietnam learn about chemical equation?

What is a chemical equation?

A chemical equation is one of the topics that students will learn.

Therefore, students can refer to the following to get an idea of a chemical equation:

**Note: The information is only for reference purposes./.

What is a chemical equation? When do students in Vietnam learn about chemical equation?​ (Image from the Internet)

When do students in Vietnam learn about chemical equation?​

Based on Section 4 of the Natural Science education program issued together with Circular 32/2018/TT-BGDDT, the contents of the natural science curriculum for grade 8 require the following:

- Calculating according to the chemical equation

- Being able to calculate the amount of substance in a chemical equation in terms of moles, mass, or volume under the condition of 1 bar and 25°C.

- Being able to state the concept of reaction efficiency and calculate the efficiency of a reaction based on the theoretical product yield and the actual product yield.

In line with the above regulations, chemical equations are first taught in the grade 8 natural science curriculum.

What is the duration for implementing the grade 8 Natural Science program in Vietnam?

According to the General Education Program for Natural Science issued together with Circular 32/2018/TT-BGDDT, the duration for each grade is regulated as follows:

The duration for each class is 140 periods per school year, taught over 35 weeks. The estimated percentage of periods allocated for each topic is presented in the following table:

Thus, the duration for implementing the grade 8 Natural Science program is 140 periods and carried out over 35 weeks.

What are the equipment, specimens, and chemicals used for practicing grade 8 Natural Science in Vietnam?

Based on the General Education Program's Natural Science subject issued with Circular 32/2018/TT-BGDDT, the equipment, specimens, and chemicals used for grade 8 Natural Science practice include:

- Tools for measuring length, area, volume, mass, temperature, time; measurement cars equipped with position sensors, force sensors for observing motion and frictional force;

- Force gauges, rulers, permanent bar magnets, spring balances; frequency generators, tuning forks, oscilloscopes; devices to generate and display light beams, light and dark areas, and light color mixing; flat mirrors, prisms; devices to create magnetic fields, student compasses; permanent magnets, electromagnets;

- Devices to observe the density of an object and the pressure applied on a surface; simple lever tools; devices to create and rearrange electric charges (e.g., van de Graaff generator, soft silk cloth, plastic comb...); toolset for measuring electric energy (joulemeter);

- Toolset for observing light reflection; toolset for observing light refraction; digital scale; handheld pH meter; glassware such as test tubes, flasks, jars, beakers, funnels, basins, pipettes...; chemicals: minimum necessary chemicals for demonstration and practical experiments.

- Specimens of fertilizers; models, molecular assembly sets of hollow and solid forms of alkanes, ethyl alcohol, acetic acid.

- Microscopic slides of cells and cellular organelles; sets for making plant hang specimens, soaking animal specimens; kits for investigating living organisms in nature.

- Equipment for practicing bandaging broken bones, blood pressure monitors, wound bandaging equipment for treating bleeding injuries.

- Room size adequate for arranging equipment, specimens, and chairs sufficient for students to conduct practical lessons, water taps, and sinks, fire prevention and extinguishing equipment, etc.

- Fixed equipment: whiteboards, specimen cabinets, consumables (chemicals, glassware, experimental trays), chemical and experimental equipment racks, poster racks, stone-topped practice tables, refrigerators, drying cabinets, dehumidifiers, ventilation fans, protective equipment, tools used according to laboratory exercises, etc.,

- Electronic and optical equipment, audiovisual devices: microscopes, magnifying glasses, binoculars, computers, projectors, screens, televisions, etc.