charge making it cation. Also this causes chlorine to have a negative charge making it an anion. Also‚ when NaCl was place in the previously unconducting distilled water‚ it created an electrical current with it’s electrical charged from being separated by the water. Sucrose‚ although may have been broken‚ was not composed of ionic compounds and therefore did not create an electrical current. b). What ions are found in this compound? In sodium chloride there is Na+ which is a cation that donated
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Place 2 drops ofcarbonate solution into five vertical wells under 6. Place 2 drops of sodium hydroxide solution into five vertical wells under 7. Record all results in the chart. Observations: |Negative Ion (Anion) |Positive Ions (Cations) | |all negative ions are SOLUBLE with |Sodium phosphate | |all negative ions are INSOLUBLE with |sodium sulfate | |all negative
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Water Technology Hardness of Water: Natural waters containing large quantities of dissolved salts of Calcium (Ca) & Magnesium (Mg) is called hard water. It is a characteristic of preventing lather formation of water with soap. Ca2+ & Mg2+ ions react with soaps which are salts of fatty acids (stearic or palmitic acid) to give insoluble scums or precipitates of calcium or magnesium stearate or palmitate. 2C17H35COO- + Ca2+ → (C17H35COO)2 Ca (scum) 2C17H35COO- + Mg2+ → (C17H35COO)2
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Scribd Extrascore Sample Questions - Answers Q.1: What are the µlaws of chemical combination¶? Ans: There are two important laws of chemical combination established by Lavoisier‚are as follows: (i) Law of Conservation of Mass The law of conservation of mass states that mass can neither be created nor destroyedin a chemical reaction.(ii) Law of Constant Proportions The Law of Constant Proportions which is also known as the Law of DefiniteProportions‚ was established by Proust
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acetic acid); boil‚ then add solid KI + fresh starch sol = deep blue colouration Group II (conc H2SO4 group) – Cl(chloride)‚ Br- (bromide)‚ I- (iodide)‚ NO3- (nitrate)‚ CH3COO- (acetate)‚ C2O42(oxalate): Salt + conc H2SO4 1. No reaction: Group II anion not present. Continue to group III. 2. Chloride: Colourless white pungent fumes (HCl); intensify when glass rod dipped in NH4OH is brought near mouth of test tube 1. Silver nitrate test: WE + AgNO3 = white ppt soluble in NH4OH 2. Chromyl chloride test:
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aerobic metabolism and dehydration synthesis. About 200ml/day. Preformed Water: Ingested in foods and drinks every day. About 1‚600ml/day. c) Name major cations and anions of the body? What is the most abundant electrolyte (cations) in the ECF(Extra Cellular Fluid) and ICF (Intra Cellular Fluid)? What is the most abundant anions in the ECF and
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Electrons are located outside the nucleus in energy levels. Electrons have a negative charge and weigh approximately 1/2000th of an amu. The weight is almost insignificant. Electrons can vary in an atom making cations and anions. Cations are a positive charge when an atom loses an electron. Anions are a negative charge when an atom gains an electron. These are the three subatomic particles that make up an atom and their characteristics. Essay- Buffer System Buffers resist pH fluctuations. A buffer
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structure ____ 1. an electron in the highest occupied energy level of an atom ____ 2. Atoms react so as to acquire the stable electron structure of a noble gas. ____ 3. a depiction of valence electrons around the symbol of an element ____ 4. an anion of chlorine or other halogen ____ 5. the force of attraction binding oppositely charged ions together ____ 6. the attraction of valence electrons for metal ions ____ 7. the number of ions of opposite charge surrounding each ion in a crystal Multiple
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• The electron donating compound is a neutral organic molecule or anion. • For a coordination complex‚ the metal ion is called the centre atom. • The molecule or anion is called the ligand and are electron donating groups. 3 Coordination Complex • A ligand can have several sites that bind to the centre atom (cation) – multidentate ligand‚ e.g. monodentate‚ bidentate‚tridentate etc. • The coordination number of the cation shows the number of covalent bonds formed with the electron donating
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DISCUSSION: Qualitative analysis is used to determine the presence of cations or anions present within a sample and their impurities. Information known‚ such as chemical and physical properties‚ about cations and anions can be used to determine what steps should be used to separate the sample into one‚ specific ion. Qualitative analysis involves forming and decomposing complex ions. Qualitative tests are very sensitive‚ allowing to detect a very small amount present in sample. Due to sensitivity
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