WorksheetsChemCom - Topic #8
Total questions: 11
Worksheet time: 7mins
How much is the temperature of the ocean projected to change between the years 2010 and 2050?
-1oC
-.5oC
1oC
5oC
Which of the following is NOT something that will be a result of warmer ocean water?
less surfers
rising sea levels
melting polar ice caps
mass migrations
What is the projected carbon dioxide level in the atmosphere in the year 2040?
445 ppm
475 meters
445 meters
475 ppm
Which story is most true about this graph?
as CO2 ppm decreases, the pH decreases
as CO2 ppm increases, the pH increases
as CO2 ppm increases, the pH decreases
If the CO2 level changes by 80 ppm in the future, the pH of the ocean will drop to about
7.94
7.97
8.0
8.05
In the middle of the experiment (Time = 5 min), the sample would be classified as __ pH.
11.0
7.0
4.8
5.2
In the middle of the experiment (Time = 5 min), the sample would be classified as __.
acid
base
neutral
What was the ΔpH from (1 min) to the end (10 min)?
1.0
2.0
3.0
4.0
Oceans are becoming more acidic because of the formation of this substance ___.
carbon dioxide
water
carbonic acid
hydrochloric acid
Which lake would be considered an acid at the END of the experiment?
Sand
Limestone
Both
How many more times acidic is Battery Acid compared to Coffee? (Change in acidity = 10 ΔpH)
10x
100x
10,000x
100,000x
