Science Study Guide for Quiz
4.9-Acidification Lab
Notes on Everything
- Carbonic acid dissolves in CO2
- Sulfur dioxide creates the term "acid rain"
- porous
- soft
- soluble In H2O
Two Gases Notes
- Magnesium Carbonate and Acid create Carbon Dioxide
-the gas escapes in the inverted test tube so it is filled air
- Magnesium and Acid create Hydrogen
-the gas can't escape from the inverted test tube and it's filled with hydrogen
Popping noise: gas is ignited and ruses out of test tube; rubs against glass and causes friction (sound); flammable gas escaping
Phenol Red
- ph indicator
- red: basic
- clear: acidic
- phenol red changes color as you add CO2 into H2O
- the CO2 turns to carbonic acid lowering the ph of CO2
- calcium tablet is more soluble in cup with straw
Ocean Acidification
- Normal ph of the Ocean is 8.1-8.4
- lower ph, less calcium, animals with shells can't make shells anymore