Chemistry, 03.12.2019 05:31 daniellaZemira
Which process is a chemical reaction? which process is a chemical reaction? limescale is formed on the kettle walls dew condensing on grass during the night gasoline evaporating from a gasoline tank lake freezes in winter
Answers: 3
Chemistry, 22.06.2019 06:40
Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.
Answers: 3
Chemistry, 23.06.2019 14:30
Will give imagine you are given a mystery element. it is, however, a discovered and known element. you may perform a maximum of two observations or tests to determine its identity. time and money is critical, so you need to prioritize your tests. if you can get by with a single test, you get 100 super-geek points from your research lab team. pick your two tests, number them as #1 and #2, and justify why you think these two will certainly be enough (and why the first might well be enough all by itself.) the available tests are classification into metal, non-metal, or metalloid, count of valence electrons, count of electron shells, atomic radius (error range: +/- 1 pm), electronegativity (error range: +/- 0.1), first ionization energy (error range: +/- 10 kj/mole), melting point (error range: +/- 10 c), and boiling point (error range: +/- 20 c).
Answers: 2
Chemistry, 23.06.2019 16:10
Which of the following is the best name for a compound made from calcium and bromine? (cabr2) calcium bromide calcium dibromide monocalcium dibromide calcium bromine ii
Answers: 2
Which process is a chemical reaction? which process is a chemical reaction? limescale is formed on...
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