Water Purification and Chlorination
Physical/Chemical Properties and Metals
Periodic Table and Atoms
Mineral Resources and Extraction
Oxidation and Reduction
100
Natural water purification and municipal water purification
What are the two main ways to purify water?
100
Properties that do not change the original make up of the substance
What is the definition of physical properties or changes?
100
In order of increasing atomic weights.
How is the periodic table is arranged horizontally?
100
Ores, which is a rock from which it is possible to recover a mineral containing something useful to mine.
Where are mineral resources found and what is the definition of it?
100
Losing electrons
What is oxidation?
200
Evaporation, bacterial action, filtration Screening, prechlorination, flocculation, filtration, post-chlorination
What are the different types of water purification techniques?
200
Properties that do change the original make up of the substance
What is the definition of chemical properties or changes?
200
Neutrons and protons
What two parts of an atom are found in the nucleus?
200
By using boiling points
How are desired metals separated from mineral resources?
200
Gaining electrons.
What is reduction?
300
Kills disease producing microorganisms which makes water safer to drink
What is a benefit of chlorination?
300
(luster, ductility, conductivity, and malleability) (brittleness, lack of luster, and no conductivity) (properties of both)
What is metals, nonmetals and metalloids? (make sure they're in order)
300
If the amount of electrons and protons are the same.
What makes an atom neutral?
300
How reactive the metal is.
What is one of the factors that affects metal extraction?
300
Cu2+ + 2e- --> Cu(s)
What is an example of an reduction reaction?
400
Can produce harmful substances which, in some cases, can cause cancer.
What is a disadvantage of chlorination?
400
Rusting of iron, combustion of wood, cooking, electroplating a metal, etc.
What is an example of a chemical change?
400
By using the atomic number.
How do you find the number of protons of an element using the periodic table?
400
less reactive metals
Which elements are least likely to be found in an ore with another element?
400
Mg(s) --> Mg2+ + 2e-
What is an example of an oxidation reaction?
500
Sand filtration, treatment with Calgon, and treatment with and ion exchange resin
What are the different ways to soften water?
500
atoms of the same element with differing numbers of neutrons
What is an isotope?
500
The average mass of the element based on the natural abundance of it's isotopes.
What is the atomic mass?
500
Minerals of more active metals because the more reactive elements often need a higher temperature to extract it from the ore.
What kind of metals are difficult to refine and process? Why?
500
Cu2+ + Mg --> Cu + Mg2+
What is an example of a redox reaction?
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