Oracle Tutoring, Campbell River, BC
(250) 203-6544 (text) or (250) 830-0295 (talk)
Self-tutoring about chemistry: the tutor mentions nuclide. A nuclide is more specific than an atom – it’s closer to the idea of an isotope. An atom is identified by its number of protons, aka its atomic number. Yet, the type …
Self-tutoring about chemistry: the tutor learns about helium and its sources on Earth. Apparently helium is the second-most abundant element in the universe (while hydrogen is first). Where is helium found on Earth? It turns out that most helium is …
Chemistry: helium: abundance and sources on Earth Read more »
Self-tutoring about chemistry: a drug question arises. My son and I were watching a video about police seizing drugs. One person had heroin on them – “a gram,” they called it. “What does a gram of heroin look like?” was …
Self-tutoring about soap and detergent: the tutor begins… I recall hearing, as a kid, a product’s being “real soap.” What is a real soap, vs a detergent? My research tells me this: Soap is made from oil produced during the …
Self-tutoring about chemistry: the tutor mentions sulfurous acid. H2SO3, aka sulfurous acid, isn’t known, for sure, to exist in that form. Dissolving sulfur dioxide in water is meant to produce sulfurous acid, but seems immediately to produce the equilibrium SO2 …
Tutoring chemistry, definitions are important. The tutor mentions the term hygroscopic. hygroscopic (adj):readily collecting water, including water vapor. A sample of hygroscopic material can draw in water from the air, thereby gaining mass invisibly as it sits, uncovered, on the …
Tutoring chemistry, definitions are always of interest. The tutor brings up the term anhydrous anhydrous (adj): containing no water. As I understand, the particles of an anhydrous substance are not associated with water, but likely would be if not for …
Tutoring chemistry, reaction order is a topic. The tutor mentions the idea of zeroth-order reaction, with an example. A zeroth-order reaction is one that proceeds at the same rate even if the concentration of reactant is increased. Of course, there …
Tutoring chemistry, heat flow between hot and cold substances might be studied. The tutor mentions a reflection about water and ice. Today, while thawing chicken breasts in water, I wondered how much water would be needed to supply the necessary …
Self-tutoring about common fuels: the tutor makes an initial comparison of natural gas to propane. Natural gas is chiefly methane, CH4; propane is C3H8. The combustion equation for methane: CH4 + 2O2 → CO2 + 2H2O Propane’s combustion equation, on …