"Cations and anions" Essays and Research Papers

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    Ions in Our Daily Life

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    " The word ion also is responsible for electrical current being symbolized by the letter i in chemistry and physics. An anion (pronounced /ˈæn.aɪ.ən/ AN-eye-ən)‚ from the Greek word ἄνω (ánō)‚ meaning "up"‚ is an ion with more electrons than protons‚ giving it a net negative charge (since electrons are negatively charged and protons are positively charged). Conversely‚ a cation (pronounced /ˈkæt.aɪ.ən/ KAT-eye-ən)‚ from the Greek word κατά (katá)‚ meaning "down"‚ is an ion with fewer electrons than

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    T represent the centers of the tetrahedral interstices in the ccp arrangement of anions. The unit cell "owns" 8 tetrahedral sites. Circles labelled O represent centers of the octahedral interstices in the ccp arrangement of anions (fcc unit cell). The cell "owns" 4 octahedral sites. Illustration 16. In a solid‚ oxide ions are arranged in ccp. Cations A occupy one – sixth of the tetrahedral voids and cations B occupy one third of the octahedral voids. What is the formula of the compound?

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    Detect the Anions Concentrations in the water Samples Narendra Boppana‚ Nasser Ali‚ Martin Chavez‚ Sear Introduction: Ion Exchange Chromatography is a process where the ionic exchange occurs in between the stationary phase and the sample in the mobile phase‚ by using this ionic exchange phenomenon it is easy to separate the compounds. Ionic exchange depends on the electrical properties of the anions and cations. Ionic exchange

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    In 1860‚ the first instrumental analysis was performed by Robert Bunsen and Gustav Kirchoff who used flames tests that led to the discovery of the elements rubidium (Rb) and caesium (Cs). After this‚ this method was used everywhere to find the chemical make ups of many substances. For example‚ in 2007 there was a huge problem where tainted pet food would cause many pets to become ill. Qualitative analysis was used and it was discovered that Melamine was found in the pet food which altered the results

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    non-metal/s. They have a regular 3D-crystalline lattice of cations and anions. Cations are atoms that have lost an electron to become positively charged‚ while anions are atoms that gained an electron making them negatively charged. In an ionic compound‚ metal form the cations and non-metal/s form the anions. Ionic compounds are held together by ionic compound which has strong electrostatic attraction between cations or metals and anions or non-metal. This bond is responsible for having high melting

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    Ionic Compounds

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    Compounds Science Perspectives 10 - Section 5.6 Pages 192-195 Compound • A Pure Substance composed of two or more elements in a FIXED RATIO Ionic Compound • A compound made up of one or more positive metal ions (cations) and one or more negative non-metal ions (anions) Ionic Bond • The simultaneous strong attraction of positive and negative ions in an ionic compound. As noted‚ ionic bonding occurs between metals and non-metals. Yet‚ “why and how” does this type of bonding occur

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    Discussion: For this week‚ we did the experiment under family of cereal which was about to investigate the effect of different alkaline solution on the quality of yellow wet noodles. There were four different formulations that we used. According to the table A in the procedure‚ it stated that for formulation 1‚ we were using Sodium Carbonate with sodium chloride as the alkaline salt solution while formulation 2 with Soda Ash with sodium chloride and formulation 3 with Potassium Carbonate with

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    chaper 7 chemistry

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    electron b. loss of 1 electron c. gain of 3 electrons d. loss of 2 electrons e. loss of 2 electrons f. loss of 1 electron g. gain of 1 electron h. loss of 2 electrons a. bromide anion b. sodium cation c. arsenide anion d. barium cation e. calcium cation f. copper(I) cation g. hydride anion h. copper(II) cation S OBLE M ASSESSMENT 27. an electron in the highest occupied energy level 28. a. Group 5A; 5 valence electrons E LESSON 7.1 PR Answers NLIN 7 Assessment

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    Unknown 2 Scheme “ Fair game” ions Cations: Na+‚ K+‚ NH4+ ‚ Ca2+‚ Mg(OH2)62+ ‚ Al(OH2)63+ Anions: SO42-‚ HSO4-‚ NO3-‚ OH-‚ Cl-‚ CO32-‚ HCO3- Insoluble Compounds: Ca(OH)2‚ CaSO4•2H2O‚ CaCO3‚ MgCO3‚ Mg(OH)2 I. Describe Sample a. Quick description of sample. Ex: Phase‚ color‚ odor‚ crystalline‚ amorphous‚ gel-like‚ powdery‚ etc. II. Flame Test a. Part 1 i. Orange Flame: Na+ is present. K+ ‚ NH4+ ‚ Ca2+‚ Mg(OH2)62 ‚ Al(OH2)63+ may also be present. ii. Purple Flame: K+ is present (no Na+

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    and 2+ (loses enough electrons to attain electron configuration of noble gas) ▪ transition metals- cations vary ▪ pseudo noble-gas electron configuration=18 electrons in outer level and all orbitals filled. ▪ pseudo noble-gas electron configuration= silver‚ copper‚ gold‚ cadmium‚ mercury ▪ name of anion ends with -ide ▪ cations-> take noble electron configuration of group before‚ anion takes noble gas electron configuration of same group ▪ Halide ions- ions produced when atoms of chlorine

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