Kimya Ödev Yardımı
QuetionAI‘nin kimya problemi çözücüsü, temel kimyasal reaksiyonları ve denklemleri kullanıcılar için gerçek zamanlı olarak özetleyebilen ve zayıf bir temele sahip öğrencilerin bile kimyada kolayca uzmanlaşabilmesi için güçlü bir öğrenme sistemine sahip olan bir ortaokul kimya ders aracıdır.
Artık periyodik tablonun temel özellikleri hakkında endişelenmenize gerek yok. Burada her elemente karşılık gelen kimyasal reaksiyonlara ve reaksiyon prensiplerine kolaylıkla ulaşabilirsiniz. Moleküllerin ve atomların orijinal yapısını, görülebilen makroskobik olaylardan çıkarmak, her zaman savunduğumuz bir kimya araştırma tekniğidir.
- CHAPTER 5 REVIEW The Periodic Law MIXED REVIEW SHORT ANSWER Answer the following questions in the space provided. 1. Consider the neutral atom with 53 protons and 74 neutrons to answer the following questions. __ a. What is its atomic number? __ b. What is its mass number? __ c. Is the element's position in a modern periodic table determined by its atomic number or by its atomic mass? 2. Consider an element whose outermost electron configuration is 3d^104s^24p^x __ a. To which period does the element belong? __ b. If it is a halogen, what is the value of x? __ c. The group number will equal (10+2+x) True or False? 3. __ a. In which block are metalloids found, s,p,d,or f' __ b. In which block are the hardest, densest metals found, s, p,or d? 4. __ a. Name the most chemically active halogen. __ b. Write its electron configuration. __ c. Write the configuration of the most stable ion this element makes. 5. Refer only to the periodic table at the top of the review of Section 2 to answer the following questions on periodic trends. __ a. Which has the larger radius, Al or In? __ b. Which has the larger radius, Se or Ca? __ c. Which has a larger radius, Ca or Ca^2+ __ d. Which class has greater ionization energies metals or nonmetals? __ e. Which has the greater ionization energy, As or CI? __ f. An element with a large negative electron affinity is most likely to form a (positive ion negative ion, or neutral atom)? Original content Copyright C by Holt, I Rinchart art and Winston. Additions and changes to the original content are the responsibility of the instructor Modern Chemistry 2 The Periodic Law
- Ornel: Haçmi o,l eitre olan bin alimingum kap 12^circ mathrm(C) de tama ile doludur. Sicaklile 18^circ mathrm(C) ye artinlirsa civa tasormi ne miktorda tosar? [ alpha_(A C)=23 cdot 10^-b( )^circ mathrm(C)^-1 R_(H f)=0,182 cdot 10^-3 mathrm(C)^-1 ]
- X,Y,Z,TV eQ metalleri ile ilgili aşağidaki bilgiler verilmiştir. X metali HNO_(3) asidi ile tepkime vermiyor. Y metalinden yapilmis kapta Q(NO_(3))_(2) ve HCl cozeltisi saklanabiliyorken, H_(2)SO_(4) çõzeltisi saklanamiyor. Z metali suyla tepkime vermezken, HCl çõzeltisine atildiginda asiniyor. - T metali soguk suyla tepkime vererek H_(2) gazi açiga çikariyor. Q.metalinin indirgenme potansiyeli pozitiftir. Buna gōre metalleri aktifliklerine gõre siralaymz.
- consider the following elements represented by the symbols A, B, C D, E, and F: 1. Provide in a table the number of protons neutrons and electrons constituting each of the elements. 2. How many different elements are there? 3. Among these elements, are there any isotopes?
- Exercise 2 Natural copper is composed of two different isotopes. Their masses are 62.929 and 64.92 , respectively. The stomic number of copper is Z=29 2. Give the composition of the two isotopes. b. Knowing that the atomic mass of the natural mixture of the two isotopes is 6354, calculate the abundance of each isotope.