Choose the method that will make the microstructure of spheroidite in an iron and carbon steel with eutectoid composition.
start at 900c then cool slowly. afterwards reheat to 800c for over a day.
start with a tempered martensite and heat to 700c for over a day.
start at 900c then cool slowly. afterwards reheat to 700c for over a day.
start with a pearlite and heat to 800c for over a day.

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)