q1w1.key - Dr. Zellmer Time: 23 mins Name 1. KEY Chemistry...

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Dr. Zellmer Chemistry 101 Wednesday 9:30 AM Time: 23 mins Summer Quarter 2008 June 25, 2008 Quiz I Name KEY Rec. Instr. 9:30 1. (5 pts) Give the names, correctly spelled, for the elements whose symbols are given below: a) S Sulfur b) Na Sodium c) He Helium a) Cr Chromium e) F Fluorine 2. (5 pts) Give the symbols, correctly written, for the elements which are named below: a) nickel Ni b) nitrogen N c) silicon Si d) vanadium V e) manganese Mn First letter must be capitalized and second letter must be lower case. 3. (3 pts) Hydrogen and sulfur combine to give hydrogen sulfide. Write a word equation for the reaction AND label the reactants and products . hydrogen + sulfur ------------> hydrogen sulfide “gives” Reactants or Products “produces” “forms” “yields” 28 2 8 H (g) + S (s) ------------> 8 H S (g) (Don’t need to know this yet.) 4. (2 pts) Report the following numbers to indicated number of significant figures . a) 101000 (to 5 sig. figs.) b) 2.03150 (to 4 sig. figs.) 1.0100 x 10 2.032 5 This should be in proper scientific Dropping a “ 50 " (exactly halfway between 2.031 and notation to report this to 5 s.f. properly
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This note was uploaded on 07/17/2008 for the course CHEM 101 taught by Professor Stegemiller during the Summer '07 term at Ohio State.

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q1w1.key - Dr. Zellmer Time: 23 mins Name 1. KEY Chemistry...

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