Question

exam. You may remove the last page and use it for IL. ve the last page and use it for scrap W Useful Data: 32 o 1 at IL-1.0567 at: "F-1.8°C -32: Densities (g/cm) Si2.33; Ag - 10.50, Au = 19.30 2.54 cm; 1 ft 12 in 8°C +32; 1 in Short answer questions. Write the correct answer in the space provi points. No work need be shown for the questions in this part. NOP 1. Convert 3.0 oz. to mL wer in the space provided. Each question is worth 5 questions in this part. No partial credit. - 1.337 mL 87 2. Which one of the following is the coldest temperature? a) 120°C b) 120°F 120K shall are the same c okB 3. Which one of the following measurements has the same 0.0053g? a) 5.30 x 10-3 g I=1.8620-132 the following measurements has the same number of significant figures as the measurement b) 503g c) 0.0530g d) 53.00g Phone of the previous 4. In which one of the following is the element symbol NOT matched with its correct namer a) Mn manganese b) Ca=calcium Chri=tin d ) Feiron e) K potassium ith its correct name? - cecilement to or may Fe=iron )K - potasium, 24 5. What is the formula of the ionic compound formed from strontium and fluorine? 5. SE PAX 6. What is the chemical formula of sodium carbonate? 6. NOX 7. How many protons, neutrons and electrons are in one Nication? 7. 126 protons 39 neutrons 26 electrons 8. Which one of these formulas is incorrect? a) Fe(SO4) b) Mg:N c) LiPO d) Cuci ZnS 9. Which of the following samples has the largest mass? a) 500 chlorine atoms b) 500 chromium atoms 5 toms 51.44 9 500 cobalt atoms se d) 500 carbon atoms e) all of the previous samples have the same mass. C. soocobe 10. Give the name of any element that has similar chemical properties to iodine. 10._15 m ine Na 11. Give the symbol for any ion that has the same number of electrons as a Nation. 11. M a 12. How many chlorine atoms must combine with 25,000 magnesium atoms to form magnesium chloride? 50000

Answer 1

1-0567 qt 3 2 oz t O.9163 9L 0.9163 L 1 o2 2 9.571mL 3 7ס. 88.7195 m La) 2 , 120A 120 +273 K = 393k 1 2 b F 1&XX'e t32 16.S8 321.67 K 18.J8 273 = (e ) 120 k 1 t coldeat t empuatue (a) strertum Spot SY Flueine F ST FZ Pceruct .r Sodium Carlenate 6 Na, c0s 2 - Na 7 inrareet Fe (s0)2 i's 8 hon hue Pn +1 ctat as Mgel with Ch loade Mog naiom 2u 1on 12 combiny NO we'll nuo 2X250UD S0,0 2 5, 00o Fr ows u