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Chemical reactionÀÌ ÀϾ ¶§ reaction(¹ÝÀÀ)À» ÇÏ´Â substance(¹°Áú)¿Í produce(»ý¼º)µÇ´Â substance¸¦ chemical formula(ÈÇнÄ)·Î represent(³ªÅ¸³»´Ù)ÇÑ °ÍÀ» chemical equation(ÈÇйÝÀÀ½Ä, ÈÇйæÁ¤½Ä)À̶ó°í ÇÑ´Ù. Chemical equationÀº reaction equation(¹ÝÀÀ½Ä, ÈÇйÝÀÀ½Ä)À̶ó°íµµ ÇÑ´Ù.
Chemical equation¿¡¼ °¡Àå Áß¿äÇÑ °ÍÀº arrow(È»ìÇ¥)ÀÌ´Ù. Arrow¸¦ °æ°è·Î left hand side(¿ÞÂÊ)´Â reactant(¹ÝÀÀ¹°, ¹ÝÀÀ¹°Áú), right hand side´Â product(»ý¼º¹°, »ý¼º¹°Áú)¸¦ denote(ÀǹÌ)ÇÑ´Ù. ƯÈ÷ double arrow(¾ç¹æÇâ È»ìÇ¥)´Â forward reaction(Á¤¹ÝÀÀ)°ú reverse reaction(¿ª¹ÝÀÀ)ÀÌ µ¿½Ã¿¡ ÀϾ´Â reversible reaction(°¡¿ª¹ÝÀÀ)À» representÇÏ´Â °ÍÀ¸·Î chemical equilibrium(ÈÇÐ ÆòÇü)À» explain(¼³¸í)ÇÒ ¶§ ¾´´Ù. _º»¹® 56ÂÊ basic concept Áß¿¡¼
In a chemical reaction, the joining together of two or more elements results in the formation of a chemical bond between atoms and causes the formation of a new substance. As substances bond or break together, they either release or consume energy. A chemical equation is the shorthand that scientists use to describe a chemical reaction. _º»¹® 63ÂÊ reading chemistry Áß¿¡¼
Example 2¡¡Which one is not an explanation of Bohr¡¯s atomic model?
a. Electrons orbit around the atomic nucleus in a circular motion.
b. The further electron shell from nucleus, the higher energy level it has.
c. An electron absolves energy when it transit to inner shell that is closer to nucleus.
d. When an electron transits, the light energy absolved or released is decided depends on the differences between the two shell¡¯s energy level.
_º»¹® 91ÂÊ problem solving Áß¿¡¼
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