It has four unpaired electrons in the Lewis dot symbol.
What is a carbon atom? (silicon, germanium, tin, ...)
100
Ozone is beneficial in this region.
What is the stratosphere?
100
The effort to prevent waste, use less energy, and generate non-toxic substances.
What is Green Chemistry?
200
The third most abundant part of dry air.
What is argon?
200
9 molecules of carbon monoxide in 1,000,000 molecules and atoms of air.
What is a concentration of 9 ppm CO?
200
An isotope with 15 protons and 16 neutrons in the nucleus.
What is phosphorus-31?
200
The natural mechanism of generation and destruction of ozone.
What is the Chapman cycle?
200
The triple Bottom Line, or PPP.
What is People, Profits, and Planet?
What is the Green Zone of healthy economies, healthy communities, and healthy ecosystems?
300
A secondary pollutant in the troposphere.
What is ozone?
300
It states that the total mass of all reactants is also the total mass of all products in a chemical reaction.
What is the Law of Conservation of Mass (Matter)?
300
Elements that have similar chemical properties.
What is a group in the periodic table?
300
A collision of an oxygen atom with an oxygen molecule.
What is a step that generates ozone (in the Chapman cycle).
300
They are used as fire suppressants but damage the ozone layer, and have been replaced in many applications by Pyrocool FEFs.
What are Halons or CFCs containing bromine?
400
A type of pollutant that can only be measured in microgram per cubic meter, and not in ppm.
What is particulate matter?
400
The reaction that produces water, carbon dioxide, and some carbon monoxide.
What is incomplete combustion (of a hydrocarbon)?
400
It is a compound of two different elements, has a triple bond and two non-bonding electron pairs.
What is carbon monoxide?
400
The anthropogenic free radical that is responsible for creating the ozone hole.
What is a chlorine (bromine) atom?
400
What you get when you divide the 11 billion hectares of biologically productive areas by the 7.3 billion people living on the earth.
What is the average sustainable ecological footprint?
(1.5 hectares)
500
A chemical compound generated by combustion of fossil fuels, which contributes to acid rain.
What is sulfur dioxide?
500
A class of compounds that is part of the reaction mechanism that creates ozone in the troposphere from nitrogen oxides, hydroxyl radicals, oxygen, and sunlight.
What are VOCs (Volatile Organic Compounds)
500
It is light that has enough energy to break the double bond in an oxygen molecule.
What is UV-C radiation?
500
The international treaty that regulates certain ozone depleting compounds.
What is the Montreal Protocol?
500
The undesired and unexpected property of HFCs and HCFCs.