The entire quiz question bank (Double only)! This quiz pulls questions at random from the entire Double-only question-bank Please wait... 1. What will happen to the yield of C when the temperature is increased? Give a reason for your prediction. A (g) + B (g) ⇋ C (g) (+∆H)Increases because the forward reaction is exothermicDecreases because the backward reaction is endothermicDecreases because the backward reaction is exothermicIncreases because the forward reaction is endothermic Loading... Question 1 of 10 2. State the steps for calculating empirical formula1) mass/Aᵣ. 2) divide by the largest. 3) Give the ratio has a whole number. 4) State final empirial formula1) Aᵣ/mass. 2) divide by the smallest. 3) Give the ratio has a whole number. 4) State final empirial formula1) Aᵣ/mass. 2) divide by the largest. 3) Give the ratio has a whole number. 4) State final empirial formula1) mass/Aᵣ. 2) divide by the smallest. 3) Give the ratio has a whole number. 4) State final empirial formula Loading... Question 2 of 10 3. An experiment investigates which of metals X and Z is more reactive. The result is X + ZSO₄ → X + ZSO₄. Which metal is more reactive?ZZSO₄XXSO₄ Loading... Question 3 of 10 4. Describe the structure of metalsA simple regular structure of positive metal ions surrounded by a sea of delocalised electronsA giant regular structure of positive metal ions surrounded by a sea of delocalised electronsA simple random structure of positive metal ions surrounded by a sea of delocalised electronsA giant random structure of positive metal ions surrounded by a sea of delocalised electrons Loading... Question 4 of 10 5. In terms of electrons, what is reduction?Reduction is the conversion of protons to electronsReduction is the loss of electronsReduction is the sharing of electronsReduction is the gain of electrons Loading... Question 5 of 10 6. Explain how the atoms are held together in a hydrogen bromide moleculeA shared pair of electrons is attracted to one nucleusA single electron is transferred from bromine to hydrogenA pair of electrons is transferred from bromine to hydrogenA shared pair of electrons is attracted to 2 nuclei Loading... Question 6 of 10 7. What is the formula for calculating an Rf value?Distance the dye has travelled measured from the solvent front divided by distance the solvent front has travelled measured from the baseline.Distance the dye has travelled measured from the baseline divided by distance of the baseline from the bottom of the pageDistance the dye has travelled divided by distance the solvent front has travelled. Both measured from the baseline.Number of components the dye has split into divided by distance the solvent front has travelled measured from the baseline. Loading... Question 7 of 10 8. 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?+530 kJ/mol-530 kJ/mol-30 kJ/mol+30 kJ/mol Loading... Question 8 of 10 9. How many electrons can the second shell hold?832216 Loading... Question 9 of 10 10. All the atoms in group 5 have 5 electrons in their outer shell. What charge ions do they form?+3-5-3+5 Loading... Question 10 of 10 Loading... Related Posts:The entire quiz question bank!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizElectrolysis quizAlcohols & Carboxylic Acids quiz stuart2022-03-09T21:20:41+00:00Categories: Uncategorized|Tags: Quiz| Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail
