I have taught chemistry to high school students for 4 years at Dallas ISD. I went to school to study Forensic Science and took classes like physical chemistry, inorganic chemistry and many others chemistry classes. I also completed a year of research. Professionally, I have trained with many different chemistry teachers to sharpen my skill and help students understand such a deep subject.
For each reaction listed, identify the proton donor or acid and the proton acceptor or base. Label each conjugate acid-base pair.a. $\mathrm{CH}_{3} \mathrm{COOH}(a q)+\mathrm{H}_{2} \mathrm{O}(l) \rightleftarrows$$\mathrm{H}_{3} \mathrm{O}+(a q)+\mathrm{CH}_{3} \mathrm{COO}-(a q)$b. $\mathrm{HCO}_{3}^{-}(a q)+\mathrm{H}_{2} \mathrm{O}(l) \rightleftarrows$$\mathrm{H}_{2} \mathrm{CO}_{3}(a q)+\mathrm{OH}^{-}(a q)$c. $\mathrm{HNO}_{3}+\mathrm{SO}_{4}^{2-} \longrightarrow \mathrm{HSO}_{4}^{-}+\mathrm{NO}_{3}^{-}$
Metallic elements can be recovered from ores that are oxides, carbonates, halides, or sulfides. Give an example of each type.
How does the position of a metal in the periodic table relate to whether it occurs primarily as an oxide or as a sulfide?
Use atomic and molecular properties to explain why life is based on carbon rather than some other element, such as silico
Define: (a) roasting; (b) smelting; (c) flotation; (d) refining.
Which set of elements gives each of the following alloys:(a) brass; (b) stainless steel; (c) bronze; (d) sterling silver?
