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WA. Homework 5 - Consider the following chemical species...

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Unformatted text preview: Consider the following chemical species: F" F Cl cl" Which of these has the largest radius? 0 F" OF @cl cl" X Which of these has the smallest radius? 0 cl" 0 cl G F" How many moles of chlorate ions, zinc ions, and oxygen atoms are present in D291 mol of zinc chlorate? chlorate ions -\’ E0552 mol zinc ions -V 90.29] mol oxygen atoms -V E1'746 mol For each of the following, enter the chemical formula. You will not see subscripts and superscripts as you type. However, numbers will be read by WebAssign as subscripts. To input a superscript, you need to insert a carat (the A symbol, shifts) before the charge. All numbers and + or - signs following the carat will be treated as a superscript. Clicking on the icon to the light of the answer box will bring up a separate window on your screen showing what your response would look like in a "chemistIy" font. a) The chemical formula for the chromate ion is 01-04:”. If you could make a chromite ion, what would be the chemical Emmy—Ex ECrOBAZ- b) What is the chemical formula for magnesium [email protected]’ EMg(CI{)2)2 c) What is the chemical formula for copper(]:l) sulfate?- d) What is the chemical formula for sodium selenide?- ’ ENaZSe Consider the electron configuration 1s22522p53s23p5. Check all of the chemical species below that have this configuration. (You should check anywhere from one to four boxes. This question needs to be completely correct in order to receive credit.) 9‘ fijflaz+ ens- QT.“ none of these gj cl" Write the names for the following substances: 3: U20 _~’ HE b) K20 —~’ HE c: res _x m a: cum —¢ BE 9) NM: —’ BE Mama: —~’ am Write the electron configuration for each of the following ions using the noble gas core notation. Note, if the ion is isoelectzronic with a noble gas, simply give that noble gas in square brackets. Spaces are ignored, so they can be [med to separate subleveb, but they are not required. For example: [Ar] 452 3dID Ion Configuration -« HE 52+ Iv @ Indicate the oxidation state of the atom in bold. You must include the sign (except for zero) even when the oxidation state is positive. For example +3 not 3. Klu04 .I BE Cazc Iv HZ CaHz .1 E: NHZOH Iv E: Cso .v “E Give the molar mass to the nearest whole number of each of the following: chromium(]I[) oxide .V BE nickel(]]) phosphate .V BE silver carbonate .V BE cupper(I) sulfate .x HE manganese(]:l) nitrite -¢ E147 Name the following compounds each—v I G r. calcium chloride Fe(NOal2 V | (9‘ iron(]1) nitra te K200a J | potassium carbonate Cocls .-‘- cobalt(]Il) chloride NH4Cl04 X | magnesium oxide ...
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