CHEM 1021 Lecture Notes - Lecture 8: Dimensional Analysis, Chemical Energy, Horse Length
Document Summary
Finish of chapter 1 with start of chapter 2. 1l = 1dm^3 (definition) d = deci = 10^-2. Energy = capacity to move an object or transfer heat. A book stored on the top of a book shelf o. Book pushed off of the book shelf, it is now in motion. 1 calorie (dietary) = 1000 calories or 1 kcal. Continuous: matter can keep dividing it into smaller pieces forever, there is no end. Particulate: you will reach a point where you cannot divide the matter any smaller. The answer came in papers published by english chemist john dalton between 1803 - Law of conservation of mass: matter is not created nor destroyed during chemical. Law of definite composition: mass percent in a compound is always the same i. Mass of ca / total mass sample * 100. Law of multiple proportions: elements can combine in multiple mass ratios creating. 2. different compounds with different chemical properties. i.
