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Chemistry: explore STEM content (page 47 of 47) · openstem
Explore STEM Content
Search the community's STEM library — free to study, yours to make your own.
Chemistry
Reactions, bonding and organic chemistry on openstem — flashcards, notes, quizzes and molecule structures shared by the community. Study free, or clone into your library.
Acid Sites Built into a Crystalline Pore A zeolite is a crystalline aluminosilicate whose corner-sharing SiO4 and AlO4 tetrahedra define a precise, molecular-scale network of pores and channels. Because each Al³⁺ substituting for Si⁴⁺ in th
Why is gold usually found as pure ('native') metal in the ground?
AIt is extremely unreactive, so it never combines with other elementsBIt is extracted from its ore by electrolysis before it is buriedCIt reacts with carbon underground to release itselfDGold ore is too rare to form
Hot and Cold in the Kitchen The kitchen is full of heating and cooling. A stove makes things hot. A fridge or freezer makes things cold. When water boils on the stove, it gets so hot that it turns into steam — a gas you can see rising above
Chemistry
Chemistry · L1 · Heating and Cooling in the Kitchen
Crystal field stabilization energy: the arithmetic and its payoff Ligand field theory tells us how strong a given ligand's field is (the spectrochemical series) and whether a d⁴–d⁷ octahedral ion goes high-spin or low-spin. Crystal field st
Chemistry
Chemistry · L5 · Crystal Field Stabilization Energy: The Arithmetic and Its Payoff