CHEM 11H Study Guide - Final Guide: Carbon Nanotube, Trailing Zero, Metric Prefix
1 Dec 2017
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Chemistry is the study of matter and the changes it can undergo. Matter is anything that has mass and occupies space (atoms, molecules, ions, etc) Understanding change: wood + air to give new molecules, also gives heat and light. Gas (or vapor): no fixed volume or shape, fills container, compressible. Liquid: fixed volume but indefinite shape, not compressible. Solid: definite shape and volume, not compressible. Compound: at least 2 different kinds of atoms. Mixture: combination of elements and a compound. Scientific notation - for very big or very small numbers see appendix a for review of exponential notations) Units - metric typically used, convert between units, si prefixes. Significant figures - cannot report answer to calculation to more digits than what we can measure. There are about 33,000,000,000,000,000,000,000 water molecules in 1 g of water. Radius of carbon atom is 0. 00000000017 meters. 0. 00000000017 meters = 1. 7 x 10-10 meters.
