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CHEM 2310 (1)
John Ng (1)
Midterm

FLARES test and other ways to test validity of a claim
FLARES test and other ways to test validity of a claim

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School
University of Lethbridge
Department
Chemistry
Course
CHEM 2310
Professor
John Ng
Semester
Summer

Description
5/13/2013 12:38:00 PM Validity of a claim tested using FLaReS - Falsifiability -Logic - Replicability - is the information reproducible. Can ireplicate the experiment to prove my claim - Sufficiency – Is the evidence being presented to support this claim sufficient. So the more Grandiose the claim, the evidence must be very significant. If a claim passes all four FLaReS tests, then it may be true. New evidence may be brought forward to disprove the claim. It may still be proven false. If it fails even one of the tests, it is likely to be false. - Testimonial cannot be used as evidence to support a claim - London Fog 1952 - 1808 increasing number of known elements around that time with no apparent order. John Dalton set up the first table based on atomic masses relative to hydrogen. Amu: atomic mass units (u) 1869, Dmitri Mendeleev arranged the elements in order of increasing atomic mass. He left gaps for yet undiscovered elements. He also predicted the properties of those elements. When those elements were eventually discovered, many of his predictions were found to be accurate. - Classifying Matter All Matter  No Yes Pure substances --- can it be separated by a physical process? Mixtures Compounds – can be broken down into simpler ones by chemical means, elements cannot. Elemental oxygen is just a single oxygen, molecular oxygen is two. Carbon Dioxide – Compound Nickel – elemet Cocaine – Compound Water Molecules (words) are groups of atomos chemically bonded together. A molecule of water is composed of two atomos of hydrogen (H) bonded to an atom of oxygen (O). H2 0 A space-filling model for a water molecule, H20. A molecule is a fixed number of atoms held together by chemical bonds in a certain spatial arrangement. The chemical formula symbolically represents the type and number of eac
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