PPT-Do Now - Ions Test Positive Ions

Negative Ions H Al H OH Li Ag F NO 3 Na Zn Cl HCO 3 K NH 4 Br CO 3 Ca I SO 4 Mg S PO 4 Ba O Formulas and Equations Using the table to the right and the PT Write formulas for . Chemistry. What is qualitative analysis. Qualitative analysis is used to determine the chemical composition of an unknown substance. Below is a list of some simple tests used to determine the presence of numerous anions and . Cations. and . Anions. Determine the presence of a . cation. or anion by a chemical reaction. Determine the identity of . cations. and anions in an unknown salt. What . are. . Cations. ?. Sometimes certain metals (Na, K, . P. olymers . Judy S. Riffle, Virginia Polytechnic Institute and State University, DMR 1106182. A new family of . phosphonate. homo- and copolymers have been designed that include poly(ammonium bisphosphonate) . SNC2D. Polyatomic Ions. Polyatomic ions are groups of atoms that tend to stay together and carry an overall ionic charge. The ion is typically held together with covalent bonds. The polyatomic ion is capable of bonding with other ions. Halogen displacement reactions. http://www.youtube.com/watch?v=Y06IoBUeVbw. Test for halide ions. http://www.youtube.com/watch?v=7F4JhrBWdY4. . Conc. Sulphuric acid and halides. http://www.youtube.com/watch?v=OoS3q1C8zts. Many ions are monoatomic BUT. Most ions are polyatomic (>1 atom). 330.07.01b.Names & Formulas - Polyatomic. There are . five common polyatomic. ions:. nitrate NO. 3. –. carbonate CO. 3. 2– . How elements become charged. How elements become charged. ION – A charged atom. All elements on the periodic table are NEUTRAL because they have the same number of . protons (+) and electrons (-). What are we testing to find?. This test is to confirm the presence of sulphate ions.. Sulphate ions are negatively charged (SO. 4. 2-. ) therefore they are anions.. How do we do the test?. Place the sample solution in a test tube.. What are we testing to find?. Halides. are salts that contain halogens, which include chlorides, bromides and iodides.. Chlorides, bromides and iodides are negative ions - negative ions are called anions.. Must list the . cation. tests.. Should describe the anion tests.. Could work out moles using the formula given. .. --------------------. Starter: How is a flame test performed?. Cations and Anions. 1) What is an ion? (1). Chloride . Bromide . Iodide. Carbonate . Sulfate. . Tests for negative ions. EXTENSION!. Can you . work out the formulae for the following where silver is Ag:. Silver chloride. Silver bromide. Method. Positive result. Hydrogen. Squeaky pop, lit splint. High pitched pop. Oxygen. Glowing splint. Splint relights. Carbon dioxide. Bubble gas through lime water ( Dilute calcium hydroxide Ca (OH). Dept. of Psychology. S.M.D. College, Punpun. Neuron: Structure & Functions. What is Neuron?. The human body is made up of trillions of cells. . Cells of the nervous system, called nerve cells or neurons, are specialized to carry "messages" through an electrochemical process. . Valence electrons. Valence electrons. . are . those electrons . that are . lost. . or . gained. . when . elements combine.. Nonmetals. will . gain. electrons . when forming . compounds. They . become .