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WHATS THE MATTER?

WHATS THE MATTER?. The stuff things are made of. COMPOUND. Matter made of one or more elements chemically combined REACTION! 2 H + O H 2 O (covalent bond=electrons shared) Na + + Cl - NaCl (ionic bond=electron given and taken). Covalent bonding. Ionic bond. PROPERTIES OF WATER.

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WHATS THE MATTER?

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  1. WHATS THE MATTER? The stuff things are made of

  2. COMPOUND • Matter made of one or more elements chemically combined REACTION! • 2 H + OH2O (covalent bond=electrons shared) • Na+ + Cl-NaCl (ionic bond=electron given and taken)

  3. Covalent bonding

  4. Ionic bond

  5. PROPERTIES OF WATER • Water has a high heat capacity • Water gains and loses heat slowly • The pan is hot, the water is not

  6. PROPERTIES OF WATER 2 • Ice floats • Most other compounds the solid form is more dense

  7. Properties of water 3 • Polar (has a positive end and a negative end • Therefore water can dissolve many things (universal solvent) • A solute is something that is dissolved

  8. Acid/Base reaction • Acids contain lots of H+ ions • Bases contain lots of (OH-) ions • Measured using the pH (percent hydrogen) scale • Product of an acid base reaction is a salt and water

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