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Compounds

Compounds. Ionic compounds. Compound between Non-metal and metal Ionic bond Large difference in electronegativity (how much the atom wants an electron) Found in solid form at SATP Conducts electricity in aqueous solution

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Compounds

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  1. Compounds

  2. Ionic compounds • Compound between Non-metal and metal • Ionic bond • Large difference in electronegativity • (how much the atom wants an electron) • Found in solid form at SATP • Conducts electricity in aqueous solution • When combined the cation is used followed by the anion, the cation is used in full and the anion has a –ide suffix: oxide, fluoride

  3. Cont’d • Multi valent metals • Different possibilities for ion charge • Iron, Copper • Check period table for common ion charge

  4. Molecular Elements • Elements ending in –gen are diatomic. Pg. 33 – should know this table

  5. Molecular Compounds • Compounds of non-metals • Covalent bond • Small difference in electronegativity • Found in all three states of matter at SATP • Does not conduce electricity

  6. Acid and Base Compounds • Identified by the H- prefix and occasionally the –COOH on the end of the compound • Found in all three states of matter at SATP • Conduce electricity in aqueous solution • Made of non-metals – assumed to be ionic • Acid pH below 7 – aqueous hydrogen • Base pH above 7 – aqueous hydroxides

  7. Acid naming • Classical naming (for information) • hydrogen _____ide -> hydro_____ic acid • hydrogen _____ate -> ______ic acid • hydrogen _____ite -> ________ous acid • hydrogen hypo_____-> hypo_____ous • IPUAC naming(good to know basic) • hydrogen ______

  8. States of matter in a compound • The state of matter is also given in the compound • i.e. H20(s), H20(l), H20(g) • NaCl(s) or NaCl(aq) • Aqueous solution – the solvent is water (dissolved in water) - homogenous mixture in one phase • Solvent – a substance that dissolves a solute • Solute – substance that is dissolved into a solution

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