COVENANT UNIVERSITY FACULTY OF SCIENCE AND TECHNOLOGY DEPARTMENT OF CHEMISTRY COURSE TITLE: General Organic Chemistry COURSE CODE: CHM 121 ‚ UNIT: 2.0 . INTRODUCTORY AND IMPORTANCE OF ORGANIC CHEMISTRY Organic chemistry is the study of the compounds of carbon. Carbon compounds are far more numerous than those of other elements because carbon are able to bond together to form a wide range of chains and rings. The subject is named organic chemistry because living organisms are composed
Premium Chemistry Chemical reaction Atom
and boiling points Very strong electrostatic bonds between the electrons and nucleuses make it very hard for heat to overcome the bonds which make the metal solid or liquid. Ionic Compounds: • Ionic substances consist of positive ions and negative ions arranged in a regular lattice • Ionic bonding is the electrostatic attraction between oppositely charged ions Property Explanation High melting and boiling points Strong electrostatic forces between the positive and negative ion
Premium Electron Atom Chemical bond
effect also contributes to the induced Polarization. If the dielectric permittivity of a material is very high‚ it usually implies that its structure allows for a mode of ionic displacements‚ which is very sensitive to external poling perturbations. BaxSr1-xTiO3 is a classical material used in microwave technology due to its high dielectric permittivity and appreciable dielectric nonlinearity. In this material‚ one of the polar optical phonon modes is responsible for its enhanced dielectricof
Premium Maxwell's equations Fundamental physics concepts
Chapter 11 - The Periodic Table 11-1 Organizing by Properties Dmitri Mendeleev (1834-1907) russian‚ published his element classification in 1869 - increasing molar mass - matching similar properties Mendeleev’s periodic table included gaps - yet to be discovered - predicted the properties of missing elements repetition in properties of the elements was a fundamental pattern in nature - periodicity of the elements modern periodic law: the properties of the elements recur periodically when
Free Periodic table Atom
the Acropolis in Athens. 2 Most Greek cities had an acropolis (meaning "high city" in Greek). The Greeks developed three architectural systems‚ called orders‚ each with their own distinctive proportions and detailing. The Greek orders are Doric‚ Ionic‚ and Corinthian.3 The Parthenon architecture is of the Doric order. It is the earliest and simplest of the Greek architectural orders. The Parthenon’s columns give an impression of graceful solidity and power. It was built from 447 to 432 BC‚ under
Premium
began a whole new era for the Greeks dealing with architecture. During the Classical Greek architecture period‚ it was made up of three different orders that are most commonly seen in their temples. These three Then 2 orders were the Doric‚ Ionic‚ and Corinthian. The orders are also known for their columns style. The Corinthian order was not used as widely as the
Premium Ancient Rome Doric order Corinthian order
Review for Semester 1 Physical Science _____ 1. What is a system of knowledge and the methods used to find that knowledge? _____ 2. How are science and technology related? _____ 3. In which step of the scientific method is information obtained through the senses? _____ 4. What happens when data in an investigation do not support the original hypothesis? _____ 5. What do we call the best possible explanation that scientists can come up with for an observation or event. _____
Premium Scientific method Science Experiment
displayed 5.70% 2‚4-dinitrotoluene and 1.53% 2‚6-dinitrotoluene. The compound is mixed with diethyl ether to isolate the organic products. This resulted in a light yellow mixture. It was then washed twice with 5% Na2CO3 because it is an ionic solution (more ionic than water) and will bond to the H+ ions. This resulted in a bright yellow mixture. Anhydrous CaSO4 is used as a drying agent. It absorbs all of the H2O in the mixture. If H2O is present‚ then the product cannot be analyzed by gas chromatography
Premium Nitration Sulfuric acid Electrophilic aromatic substitution
In a sample of solid Al(NO3)3‚ the ratio of aluminum ions to nitrate ions is (1) 1:1 (2) 1:2 (3) 1:3 (4) 1:6 19. What is the total number of atoms in (NH4)2SO4? (1) 10 (2) 11 (3) 14 (4) 15 22. Write the correct formula for the following binary ionic compounds. (a) Lithium fluoride LiF (b) Calcium oxide CaO (c) Aluminum nitride AlN (d) Beryllium chloride BeCl2 (e) Potassium iodide KI (f) Aluminum oxide Al2O3 23. Write the correct formula for the following binary molecular compounds
Free Oxygen Oxide Aluminium
materials used in its building and the Parthenon used limestone. The Parthenon is more rectangular in shape whiles the Pantheon is round with a square front. The Pantheon was built following the Corinthian order while the Parthenon followed the Doric and Ionic order. Conclusion. With architectural works of ancient‚ the design of both Parthenon and Pantheon are still reflected on modern buildings. The both Rome and Greece had great respect for their gods thus building a place of worship. Rome had great
Premium Roman Empire Ancient Rome Rome