پاورپوینت شیمی آلی (pptx) 61 اسلاید
دسته بندی : پاورپوینت
نوع فایل : PowerPoint (.pptx) ( قابل ویرایش و آماده پرینت )
تعداد اسلاید: 61 اسلاید
قسمتی از متن PowerPoint (.pptx) :
بنام خدا
شیمی آلی
امتحان میان ترم 8 نمره 4۰ %
امتحان پایان ترم ۱۲ نمره ۶۰ %
کار کلاسی و تمرین 1 نمره -
غیبت مجاز: ۳/۱۷ کل ساعت درسی
ارزشیابی
فصل اول:
مفاهیم اساسی
CHEMISTRY:
Chemistry is the study of the properties, composition,
and structure of matter, the physical and chemical
changes it undergoes, and the energy liberated or
absorbed during those changes.
Why Study Chemistry?
1. To better understand the world: what it is made of and how it works.
2. Because it is the most practical and relevant of the sciences - chemistry is the study of EVERYTHING!
3. It is the “Central Science” - All other sciences intersect at and depend on chemistry.
It is essential to the national and local economies.
It is required for virtually every major involving Science, mathematics, or engineering.
And what reasons can you think of ?
Chemistry is an Observational Science
Observation: Using the five senses to “see” what is and happens around you.
Conclusion: An explanation of the cause or causes for one or more observations.
Observations vs. Conclusions
OBSERVATION:
When electricity is passed through a salt solution, a yellow-green gas and a colorless, flammable gas forms.
CONCLUSION:
The yellow-green gas is chlorine and the colorless gas is hydrogen.
The Scientific Method
1. Collect Facts or Data (Observe!!)
2. Search for Generalizations or Laws to Summarize the Facts.
3. Freely Use Your Imagination to Construct Theories or Models of Nature that Will Account for the Laws.
4. Test Theories/Hypotheses for Accuracy.
5. Modify Theories/Hypotheses as Necessary Based on Your Test Results.