English4Chemistry

Dialog : Cause And Effect About Chemical Reaction We can divide the most common linking words and expressions of cause and effect into four group : 1. Coordinating Conjunctions: for (cause), so (effect) 2. Subordinating Conjunctions: because, since, if, whenever, so that, as (cause) 3. Conjunctive Adverbs: therefore, for this reason, as a result, thus, that is why, consequently (effect) 4. Preposition: because of, reasons for, consequences of, due to (cause) Jelpa : hi Aulia! Aulia : hello Jelpa! Jelpa : Aulia, I have a magic attraction. Aulia : Really? Show me! Jelpa : I cannot do it here. So instead you guess what would happen if I dipped the paper money into a glass of alcohol and water, and then I burned it. What is the effect? Aulia : I know the answer. As a result is that the paper money are not burned. Jelpa : wow. That’s true. Where do you know? Aulia : I have seen the videos on the internet.  Jelpa : Thus why do you thin...

Signs and Evidence Of Chemical Reaction There are a variety of signs that may provide clues that a chemical change has entered the building. Let's look at the following five signs: Odor Gas bubbles Precipitate formation Color change  Temperature change Lighting Volume Changes occur Conductivity change Pain Changes There is a change of Boiling Point and Freezing Point Odor Have you ever witnessed the awful sight and smell of spoiled food? Some chemical compounds (such as ammonia) have a strong odor. Then the formation of ammonia or other odorous compounds will cause odor changes in the system. Before going bad, a chemical change must take place. The evidence of the chemical change in our food is the offensive smell. Not all the smells are bad however; the delicious smell of baking bread is due to chemical change as well. You must have been drinking soft drinks, have not you? The presence of foam is proof that in the soft drinks gas results from chemical r...

This dialogue is made based on the five approach theory, there are observe, ask, analyze, try, and conclude. On a sunny morning, a chemistry teacher explains the material about the colligative nature of the solution to h er students in the classroom. Teacher             : Good morning Class! All student        : Good morning, Miss! Teacher            : Today we will learn about the colligative nature of the solution .   The colligative nature of the solution is the nature of the solution that is affected by the amount  of solute particles and is independent of the nature of the solute . Does anyone know anything  that includes the colligative nature of the solution? Please raise your hand ! ( Some students raised their hands. The teacher appoints one of th...