Chemistry Education

Learning Steps with a Scientific Approach Regulation of education and culture (permendikbud) No. 81 A of 2013 attachment IV, the learning process consists of five main learning activities namely: Observing, Asking, Collecting Information / Experiments, Associating / Processing Information, And, Communicating. Observe                In the process of observing learners are expected to be able to see what the teacher presents, such as video or film related material, the teacher can also display images that are also related to the material. In addition, observations can also be done at the time of the teacher to simulate. Ask                After learners observe, then learners formulate questions on what has been displayed in the teacher, if there are already questions on learners expected with the question that will make learners...

Chemical Reaction On Battery Chemical Reaction On Battery - As a basic lesson you should reread the previous page such as the explanation of electrolyte and vent plug. Understanding the description means that you are ready to learn what is being said here. Battery at the time of discharging and recharging will happen chemical reaction. Here is the full description. - Chemical Reactions On Discharging What is meant by discharging is the use of battery (capacity) content. Chemical reactions that occur are: PbO2 + 2 H2SO4 + Pb ---> PbSO4 + 2 H2O + PbSO4 At the end of discharging, the positive plate and negative plate will become PbSO4 and the electrolyte will be H2O. - Chemical Reactions On Recharging Recharging is the battery charging process. Chemical reactions that occur are: PbSO4 + 2 H2SO4 + PbSO4 ---> PbO2 + 2 H2SO4 + Pb The end of this recharging process, the positive plate returns to PbO2 and its negative plate Pb, while the electrolyte is re-formed into H2SO4. ...

Term acid Definition a compound that donates H +  ions to a solution; pH <7 Term base Definition a compound that removes H +  ions from aqueous solution or donates OH - ; pH >7 Term pH Definition describes how acidic or basic a solution is Term anthocyanin Definition natural pH indicator Term amu Definition atomic mass unit Term element Definition pure substance made of only one kind of atom Term What are the four main elements in living things? Definition Hydrogen, Oxygen, Nitrogen, Carbon Term What are the additional four elements in living things? Definition Potassium, Phosphorus, Sulfur, Calcium Term ion Definition an atom or molecule with a charge Term isotope Definition atoms with different numbers of neutrons Term radioactive isotopes Definition have unstable nuclei that break down over time, emitting particles Term tracers Definition isotopes tha...

Definitions Compare and contrast essays  are multi-paragraph compositions that explain ways in which two (or, very occasionally, more) subjects are similar or different. In these papers,  compare  means describing similarities between the subjects. When we are comparing Uberman and Catman, we might describe their tragic backstories, their secret double lives, and their fondness for crime fighting. Basically, the comparison tells what they have in common. The arch-enemy of comparing is contrasting. When you  contrast  two things, you explain ways in which they are different. Contrasting Catman and Uberman, we might take note of the way Catman uses his opponent's strength against him, while Uberman depends on brute force. Bubble Map Bubble Maps are used to describe qualities using adjectives ("sparkle words") and adjective phrases. As a writing tool it enriches students' abilities to identify qualities and use descriptive words. In the center circle, wr...

A  substance  is a sample of matter whose physical and chemical properties are the same throughout the sample because the matter has a constant composition. It is common to see substances changing from one state of matter to another. To differentiate the  states of matter  at least at a particle level, we look at the behavior of the particles within the substance.  When substances change state, it is because the spacing between the particles of the substances is changing due to a gain or loss of energy . For example, we all have probably observed that water can exist in three forms with different characteristic ways of behaving: the solid state (ice), liquid state (water), and gaseous state (water vapor and steam). Due to water's prevalence, we use it to exemplify and describe the three different states of matter. As ice is heated and the particles of matter that make up water gain energy, eventually the ice melts i...