The entire quiz question bank! This quiz pulls questions at random from the entire 1100+ question-bank Loading... 1. Use Q=mcΔT and c=4.18J/°C/g. 25cm³ of sulfuric acid is put into a boiling tube. The starting temperature is 21°C. A spatula of iron filings is added. After a while the temperature reaches 33°C. What is the total heat energy change?2.153 kJ3383 J1254 J2153 JQuestion 1 of 10 Loading... 2. Is sodium nitrate soluble?yesslightlynoQuestion 2 of 10 Loading... 3. How many neutrons in a typical atom of hydrogen?0241Question 3 of 10 Loading... 4. Explain why bromine is less reactive than chlorineBoth chlorine and bromine react by their nucleus attracting an electron to fill their outer shell. The outer shell of bromine is further from the nucleus, so the attraction is weaker, making it less reactive.Both chlorine and bromine react by their nucleus attracting an electron to fill their outer shell. The outer shell of bromine is further from the nucleus, so the attraction is stronger, making it less reactive.Both chlorine and bromine react by their nucleus attracting an electron to fill their outer shell. The outer shell of bromine is closer to the nucleus, so the attraction is stronger, making it less reactive.Both chlorine and bromine react by their nucleus attracting an electron to fill their outer shell. The outer shell of bromine is closer to the nucleus, so the attraction is weaker, making it less reactive.Question 4 of 10 Loading... 5. Do metals other than iron rust?Yes. any oxide can be called rustYes. Any metal salt can be called rustNo. The term rust is only applied to ironYes. Metal oxides that form at room temperature and pressure with only water and oxygen can be called rustQuestion 5 of 10 Loading... 6. Why does incomplete combustion occur?When there is reduced fuel avaliableWhen the fuel is wetWhen there is an insufficient supply of oxygen for complete combustionWhen there is an insufficient supply of waterQuestion 6 of 10 Loading... 7. In a chemical reaction, 250 kJ/mol is taken to break all the bonds and 280 kJ/mol is released when new bonds are formed. What is the overall molar enthalpy of the reaction?-30 kJ/mol+530 kJ/mol+30 kJ/mol-530 kJ/molQuestion 7 of 10 Loading... 8. Work out the empirical formula of an oxide of chlorine contains 7.1 g of chlorine and 1.6 g of oxygen. Cl₄OCl₂OCl₄O₂Cl₂O₂Question 8 of 10 Loading... 9. When NaOH is added to a sample, a blue precipitate forms. What cation was present in the sample?Iron (III), Fe³⁺Potassium (I), K⁺Calcium (II), Ca²⁺Copper (II), Cu²⁺Question 9 of 10 Loading... 10. What is the name of this ester?butyl ethanoateethyl methanoateethyl ethanoatemethyl propanoateQuestion 10 of 10 Loading... Related Posts:The entire quiz question bank (Double only)!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizElectrolysis quizAlcohols & Carboxylic Acids quiz Hydr0Gen2022-03-09T21:22:06+00:00Categories: Uncategorized|Tags: Quiz| Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail
