WebNov 19, 2010 · If zinc and iron are used to make a cell what half-reactions will occur for zn2 plus aq plus 2e- zn s e0 equals -0.76 v and for fe3 plus aq plus e- fe2 plus aq e0 equals 0.77 v? Zn(s) → Zn2+(aq) + 2e- and Fe3+(aq) + e- → Fe2+(aq) WebOct 23, 2009 · What is the symbol equation for copper oxide plus hydrogen equals copper plus water? CuO + H2 -----> Cu + H2O. You shouldn't say "plus" for the reactions, it has to be the arrow as the arrow symbolises lots of complicated reactions, making it different to adding them together.
Density Lab - We were given an unknown metal to measure the
WebDarken the room lights. Light the propane torch. Heat the end of the steel rod until it glows. Holding the steel rod horizontally, insert the glowing tip of the steel rod into the base of the mixture pile. Hold the rod still as the reaction initiates and proceeds through the pile. Carefully lift the rod after the reaction is complete. WebSo the word equation that describes rusting is iron plus oxygen plus water reacting to form hydrated iron(III) oxide, which matches answer choice (D). Though the question didn’t ask for it, the corresponding chemical equation is 4Fe plus 3O2 plus 2nH2O reacting to form … inbox rediffmail.com
WHAT LIES BENEATH - Faithlife Sermons
Web2Na (s) + 2H2O (l) 2NaOH (aq) + H2(g) Calcium reacts readily with water. calcium + water calcium hydroxide + hydrogen Ca (s) + 2H2O (l) Ca (OH)2(aq) + H2(g) Calcium hydroxide is slightly... WebDec 13, 2024 · If the water level starts at 40 ml and changes to 90 ml after submerging the object, the volume of the object equals final water volume (90 ml) minus initial water volume (40 ml), or 50 ml. If the object doesn't fit into a graduated cylinder or measuring cup, you can measure the volume of displaced water in different ways. in any distribution how many means are there