Pigments
This red, non-toxic pigment is one of the oldest known.
What is burnt ochre or red ochre, also accept burnt umber or burnt sienna?
These two gems are nearly identical in chemical composition (Al2O3 or corundum) except one has a small amount of Cr3+ and the other has iron and titanium impurities.
What are ruby and sapphire?
The two transition metals in the alloy bronze?
What are copper and tin?
The number of unpaired electrons in [V(H2O)6]3+.
What is 2?
The name of the knitting pattern created when you knit row after row on straight needles.
What is garter?
The two oxidation states of iron found in the pigment Prussian blue.
What are Fe2+ and Fe3+?
This mineral is used to make a historically very popular and very toxic bright red pigment.
What is cinnabar or vermilion (pigment name)?
This metal is found in a porphyrin ring in the vitamin B12.
What is cobalt?
The number of unpaired electrons in the complex [Co(CN)6]3–.
What is zero.
The climbing hold that you can only get the ends of your fingers on is known as which of the following: jug, pocket, crimp, or sloper?
What is crimp?
The name of the process used to make pigments that involves heating the substance. It sounds like an element's name.
What is calcination?
The metal responsible for the green color of emeralds.
What is chromium?
This transition metal plays a role in metabolism and has been promoted as beneficial for weight loss, muscle building, and treating insulin-resistance.
What is chromium?
The two conditions necessary to achieve the highest possible spin for a transition metal complex.
What are 5 d-electrons and weak field ligands?
Three main ingredients necessary to make soap.
What are lye (sodium hydroxide or strong base), fats or oils, and water (colors and fragrances are optional)?
could also accept glycerin, base and fatty acids.This pigment was used in green underpainting during the Renaissance in a technique called Verdaccio.
What is green earth or Verona green?
These two minerals have very similar chemical compositions, are often found together, and have both been used as pigments since ancient times but have different cool-tone colors (though one can transform into the other over time).
What are azurite and malachite?
While not technically a transition metal, this heavy metal is toxic because it mimics phosphorous in the body.
What is arsenic?
The lanthanide (f-block metal) with the greatest overall spin. It is commonly used in MRI contrast agents.
What is gadolinium?
The knot used by climbers to attach their harness to the top rope has the shape of this symbol.
What is an 8?
Cadmium pigments can have a range of colors depending on the other element paired with cadmium in the compound. Orange cadmium pigments have this composition.
What is a fairly equal mix of S and Se (mix of CdS and CdSe)?
These gemstones that are all used as birthstones are all the same type of hard mineral (7 on the Mohs scale) but have dramatically different colors (violet, blue, and yellow) due to small impurities. Name the gemstones and the mineral.
What are quartz, amethyst (violet), blue topaz (blue), and citrine or yellow topaz (yellow).
This transition metal is the second most abundant element in the Earth's core, is magnetic, and is used to make green glass.
What is nickel?
The difference in the number of unpaired electrons in [FeCl6]3– versus [Fe(CN)6]3–.
What is 4 (5 for [FeCl6]3- versus 1 for [Fe(CN)6]3–)?
The largest possible number of cards that can be dealt out in the game Set without a set being present.
What is 20?