140 likes | 267 Views
Chemistry is the science that explores matter, its properties, structure, and transformations. This comprehensive guide examines key concepts such as the definition of matter—anything with mass and volume—and the distinction between substances and mixtures. Discover the differences between elements and compounds, as well as the variations in mixtures including heterogeneous and homogeneous types. Further, delve into the historical pursuit of alchemy, which aimed to transform base metals into gold, and gain insight into the significance of elements like magnesium in modern applications like fireworks.
E N D
General Chemistry • Mrs Rose Marie Capanema
Chemistry is the study of matter ; their properties, structure, and the changes they undergo.
Fools Gold & Aspirin • Pyrite • Chemical Formula: FeS2 • Aspirin • Structural Formula:
What is matter ? • Anything that has mass and occupies space. • What are the three main physical states of matter? (KE and PE) http://www.harcourtschool.com/activity/states_of_matter/
Definitions: • http://www.fordhamprep.org/gcurran/sho/sho/lessons/lesson14.htm • MatterAnything with mass and volume. • Substance Matter with constant composition • MixtureMatter with variable composition • ElementSubstance made up of only one type of atom • CompoundTwo or more elements that are chemically combined • Heterogeneous MixtureMixtures that are made up of more than one phase • Homogeneous MixturesAlso called solutions. Mixtures that are made up of only one phase
Demo Magnesium is one of the most important component of fireworks. http://www.gwinnett.k12.ga.us/LilburnES/PromoteGA/entertainment/fireworks_elements.html
Alchemy • Alchemists searched for a way to transform impure elements such as lead into pure gold. • http://www.alshindagah.com/julaug2005/gold.html
Is it possible to change copper into silver and then into gold?
The copper face shows how the statue would look like if the copper was not oxidized.
http://www.fordhamprep.org/gcurran/sho/sho/lessons/lesson15.htmhttp://www.fordhamprep.org/gcurran/sho/sho/lessons/lesson15.htm