Have an account?
Skip to Content
Build your own quiz
32 questions
Show Answers
See Preview
- 1. Multiple ChoiceIn which of the following molecules will hydrogen bonding NOT occur?H2OHFNH3HCl
- 2. Multiple ChoiceIn order for the reaction
2Al (s) + 6HCl(aq) --> 2AlCl3(aq) + 3H2(g) to occur, which of the following must be true ?Al must be above Cl on the activity series.Al must be above H on the activity series.Heat must be supplied for the reaction.Al must be an acid. - 3. Multiple ChoiceDouble bonds are _________ and ___________ than single bonds.longer and strongerlonger and weakershorter and weakershorter and stronger
- 4. Multiple ChoiceIf you want to produce 35.4 g of zinc chloride, what mass of zinc do you need to react according to the equation
Zn + 2 HCl --> ZnCl2 + H2?17.0 g Zn4.00 g Zn35.4 g Zn54.3 g Zn - 5. Multiple Choice
What intermolecular forces (IMFs) would occur in the following moleculeLondon Dispersion Forces only.LDF and dipole-dipole interactions.LDF, dipole-dipole, and hydrogen bonding.dipole-dipole only - 6. Multiple ChoiceGiven the equation
2Mg(s) + O2(g) --> 2MgO(s) + 72.3 kJ, if the reaction began with 20.0 g of Mg, how many kJ of heat would be produced?72.3 kJ36.2 kJ144.6 kJ29.7 kJ - 7. Multiple ChoiceA chemical reaction in the laboratory that absorbs heat from its surroundings into the system and feels cold to the touch is considered to be _________________.exothermicendothermichyperthermicectothermic
- 8. Multiple ChoiceWhich molecule would have the lowest melting point?H2OHClCCl4They are all the same.
- 9. Multiple ChoiceThe melting point and boiling point of water is significantly higher than other small molecules of comparable mass (ex. Ammonia and methane) because of the__________________.small size of water molecules.covalent bonds in water molecules.low mass of water molecules.hydrogen bonding between water molecules.
- 10. Multiple ChoiceWhich statement correctly describes why the freezing of water is an exothermic reaction?Water molecules (the system) lose energy to its surroundings.Water molecules (the system) absorb energy from the surroundings.Water molecules (the system) speed up and lose kinetic energy.Water molecule (the system) slow down and gain kinetic energy.
- 11. Multiple ChoiceIn a voltaic cell, ______________ occurs at the anode and ________________ occurs at the cathode.reduction; oxidationeverything;nothingoxidation;reductionnone of these
- 12. Multiple ChoiceGiven the equation 2Mg(s) + O2(g) --> 2MgO(s) + 72.3 kJ, which of the following is true?The reaction is endothermic because heat is a product.ΔH = -72.3 kJΔH = +72.3 kJThe reaction absorbs heat.
- 13. Multiple ChoiceWhat is the percentage of aluminum in Al2(SO4)3?28.1%54.0%15.8%56.7%
- 14. Multiple ChoicePredict the products of the following single replacement reaction:
Ag + CuCl2 --> ?????Cu + AgClCu + AgCl3Ag + Cu + Clno reaction - 15. Multiple ChoiceHow many grams of SO2 are in a 0.65 mole sample of SO2?32 g16 g42 g64 g
- 16. Multiple ChoiceA heating curve gives information on:plasma and gases.Termperature at which a substance exists at a solid, liquid and gas.Volumes of liquids and solids.Mass changes of solids, liquids and gases.
- 17. Multiple ChoiceAccording to the diagram above, the boiling point of this substance is at:30 degrees Celsius100 degrees Celsius70 degrees Celsius125 degrees Celsius
- 18. Multiple ChoiceOn line segment R, the substance exists in which state of matter?solidsolid and liquidliquidliquid and gas
- 19. Multiple ChoiceOn line segment U, the substance exists in which state of matter?solidliquidgasliquid and gas
- 20. Multiple Choice1.00 grams of water (specific heat is 4.18 J/g ̊C) and 1.00 grams of aluminum (specific heat 0is 0.902 J/g ̊C) are heated at the same time. Which of the following is true:The water will heat up faster because it has a higher specific heat.The aluminum will heat up faster because it has a lower specific heat.The water and the aluminum are heat up at the same time.You cannot tell from the information given.
- 21. Multiple ChoiceWhich of the following molecules are polar?
Cl2CH4CO2NH3 - 22. Multiple ChoiceWhich state of matter has the strongest IMFs (intermolecular forces) at room temperature?solidsliquidsgasesThey are all the same.
- 23. Multiple ChoiceAccording to Le Châtelier’s Principle, removing O2 to the following reaction, 2Mg(s) + O2(g) <--> 2MgO(s) + 72.3 kJ, will push the reaction towards the:productsreactantscatalystIt will have no effect.
- 24. Multiple ChoiceAccording to Le Châtelier’s Principle, adding heat to the following reaction, 2Mg(s) + O2(g) <--> 2MgO(s) + 72.3 kJ, will push the reaction towards the:reactantsproductscatalystit will have no effect.
- 25. Multiple ChoiceAn increase in intermolecular forces causes increases in which of the following:Boiling pointSurface TensionViscosityAll of the above
- 26. Multiple Choice2 Fe(NO3)3 + 3 Ba(OH)2 -->
2 Fe(OH)3 + 3 Ba(NO3)2 If you want to produce 86.5 g of iron (III) hydroxide, what mass of barium hydroxide do you need to react?208 g Ba(OH)2171 g Ba(OH)2107 g Ba(OH)2307 Ba(OH)2 - 27. Multiple ChoiceWhich statement best explains why chlorine is a gas at room temperature and iodine is a solid at room temperature?Chlorine has stronger London Disperson Forces than iodine.Chlorine has stronger covalent bonds than iodine.Iodine has stronger London Dispersion Forces than chlorine.Iodine has stronger ionic bonds than chlorine.
- 28. Multiple ChoiceIn a sample with 17.0 grams of water, how many molecules of water are present?6.0 molecules5.68 x 1023 molecules5.68 molecules6.02 x 1023 molecules
- 29. Multiple ChoiceFill in the blanks. When bonds are broken, energy is ______. When bonds are formed, energy is _______.released; absorbedabsorbed;releasedabsorbed;absorbedreleased;released
- 30. Multiple ChoiceIs the following reaction exothermic or endothermic?
N2 + 2O2 + 34kJ --> 2NO2ExothermicEndothermic - 31. Multiple ChoiceDoes this potential energy diagram represent an exothermic or endothermic reaction?ExothermicEndothermic
- 32. Multiple ChoiceWhat compounds are responsible for acid rain?sulfuric acid and nitric acidsulfur and nitrogensulfur dioxide and nitrogen oxidesMs. Soloman
- Answer choicesTagsAnswer choicesTags