Percentages 45 Acid and Base Indicators 1. Students use 4 indicators to test various acid and base indicators. Students extract phenolp. Students observe the formation of 4 different crystals under the microscope. Comparing 47 Ink Chromatography 1.
Students separate black ink using different solvents.
2.-Students determine the Rf of the inks. Measuring volume 2. Rf 48 Carbon Dioxide 1. Students determine whether CO 2 supports combustion. Students determine if CO 2 causes limewater to turn a different shade.