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M&M Environmental Services
Helping
wastewater, water, distribution & collection
operators boost their capabilities through training and
practice exams
I-Practice |
Need help passing
your certification exam, try I-Practice |
? |
Write the chemical
formulas for each of these gases and select whether the gas is
heavier, lighter or about the same as air
Gas |
Chemical
Formula |
Heavier,
lighter or about the same as air |
Ammonia |
|
|
Carbon
dioxide |
|
|
Carbon
monoxide |
|
|
Chlorine |
|
|
Helium |
|
|
Hydrogen sulfide |
|
|
Methane |
|
|
Nitrogen |
|
|
Oxygen |
|
|
Ozone |
|
|
Sulfur
dioxide |
|
|
Click here
for the answer |
Math Tools |
Need help with
conversions, go to
Steve's Box
Converter
or YouTube
and see video (http://www.youtube.com/watch?v=zgRSE23h3sY&feature=channel).
Want more help with
the
Davidson Pie,
check out Phil's video
on YouTube!!! |
Work Schedule
|
Check out our model work schedule for
wastewater treatment plants |
For questions or comments on this web site,
call 515-313-1159 or contact our gmail account, wd2cww
|