Answer the Question according to the Color bromothymol ( blue, green or yellow)
Is it Blue, Green, or Yellow

1.What effect does carbon dioxide have on tap water ---pH -7.2 Yellow

2.pH after exhaled air is blown through a straw into

water for 5 min. pH=5.1

3.pH after a snail has lived in water for three days pH=5.8

4.pH with 2mL of bleach added to the water pH=9.4

5.pH with instant coffee added to the water pH=5.0

6.pH after an aquatic plant is grown in water for three days in bright sunlight---pH=7.7