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Study with Quizlet and memorize flashcards containing terms like A chemical is any substance that has ________ composition. (Definite, indefinite), Chnages in chemicals, or chemical reactions, take place_______.
Oct 11, 2024 · Study with Quizlet and memorize flashcards containing terms like Chemistry, How Many Branches of Chemistry are there?, Organic Chemistry and more.
Start studying Chemistry Final 1. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Dec 13, 2023 · The rule is that to find the value of the unknown variable, you must mathematically isolate the unknown variable by itself and in the numerator of one side of the equation. Finally, units must be consistent. For example, in Boyle's law there are two pressure variables; they must have the same unit.
Chapter 1. Define chemistry, matter, composition and property a. Chemistry = 1) the study of matter and its properties, 2) the changes that matter undergoes, and 3) the energy associated w/the changes b. Matter = anything that has BOTH mass and volume c. Composition = the TYPES and AMOUNTS of simpler substances that make up matter d.
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IGSCE Chemistry answers. UNIT 1 ANSWERS. CHAPTER 1. a melting. subliming/sublimation. freezing. subliming/sublimation. a. solid liquid gas. Note: Solids should have regularly packed particles touching. Liquids should have most of the particles touching at least some of their neighbours, but with gaps here and there, and no regularity.
The octet rule refers to the tendency of atoms to prefer to have eight electrons in the valence shell. When atoms have fewer than eight electrons, they tend to react and form more stable compounds. Atoms will react to get in the most stable state possible.
