Pysical Chemical Lab Report

Design Your Own Physical and Chemical Change acquaintance lab Report Emma Melina March 11th, 2011 Purpose: To determine whether the avocation combinations of chemics get to chemical or physical reactions. Hypothesis: If the hobby combinations of chemicals argon mixed together, then they will produce largely chemical changes. Materials: -2 metal 1g spoons -calcium chloride (CaCl) -baking soda (NaHCO3) -phenolphthalein -bromothymol gamey -plastic bags -distilled water -graduated cylinder Procedure: 1. Add combinations from the ceremonial table into baggies and mix together. 2.Record observations. Observations: fable: Amount unless otherwise qualify: Distilled water- 5ml Calcium Chloride-1g Baking soda-1g Bromothymol blue (Bb) -2 drops Phenolphtholein (P)-2 drops # Combinations of Chemicals Before After 1 Distilled water, CaCl, NaHCO - fizzing -milky-coloured -bubbles -dissolved -warm 2 Distilled water, CaCl - ambiguous -did n on dissolve, CaCl settled at bottom 3 Distilled water, NaHCO -dissolved -warm, then coldness -cloudy, then clear 4 Distilled water, CaCl, NaHCO, Bb -cold -fizzy -slightly foaming 5 Distilled water, CaCl, NaHCO, P -same as #6 6 Distilled water, CaCl, NaHCO, P, Bb -bubbly -very cold -milk-white -opaque 7 Distilled water, CaCl(2g), NaHCO(0.

5g), Bb -loud fizzy noise -bubbles -fizz -white -opaque 8 Distilled water, CaCl(2g), NaHCO(0.5g), Bb, P -same as #9 9 Distilled water, CaCl(2g), NaHCO(0.5g), P -fizzy -milk-white/yellow -semi-cold -opaque 10 Distilled water, CaCl(0.5), NaHCO(2g), Bb -very cold -fizzy -bubbles -white 11 Distilled water, CaCl(0.5), N aHCO(2g), Bb, P -very cold -white -opaque! -more facile than bubbles 12 Distilled water, CaCl(0.5), NaHCO(2g), P -slightly cold -very bubbly -almost clings to side of bag when squeezed -white 13 Distilled water, CaCl, Bb -light blue -dissolved 14 Distilled water, CaCl, Bb, P -slightly cloudy -yellow 15 Distilled...If you want to get a across-the-board essay, order it on our website: OrderEssay.net

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