This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 18 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A substance that contains different compounds and/or element A) Matter. B) Mixture. C) Molecule. D) Atom. Show Answer Correct Answer: B) Mixture. 2. A sample of bismuth has a mass of 343 g and a volume of 35.0 cm3.What is the density of bismuth? A) 0.102 g/cm3. B) 9.80 g/cm3. C) 378 g/cm3. D) 1.20 104 g/cm3. Show Answer Correct Answer: B) 9.80 g/cm3. 3. What is a control used for in an experiment? A) It is what is measured. B) It is what I change. C) It is used as a comparison. D) It is part of the conclusion. Show Answer Correct Answer: C) It is used as a comparison. 4. Which gas is filled in refrigerators? A) Butane. B) Methane. C) Acetylene. D) Chlorofluorocarbon. Show Answer Correct Answer: D) Chlorofluorocarbon. 5. What is the main biological function of carbohydrates? A) Store energy. B) Contain genetic information. C) Make up enzymes. D) Make you fat. Show Answer Correct Answer: A) Store energy. 6. Which is heavier, an atom of H or an atom of He? A) An atom of H. B) An atom of He. C) They are the same. D) 6.02 x 1023. Show Answer Correct Answer: B) An atom of He. 7. What atom matches this electron configuration? 1s22s22p63s23p64s23d10 A) Zinc. B) Copper. C) Nickel. D) Germanium. Show Answer Correct Answer: A) Zinc. 8. What is the first thing you must do to solve a stoichiometry problem? A) Write a Balanced Equation. B) Panic. C) Write an Unbalanced Equation. D) Ask for help. Show Answer Correct Answer: A) Write a Balanced Equation. 9. What does the Law of Conservation of Mass state? A) The matter can be created and destroyed. B) That matter cannot be created or destroyed. C) That mater cannot be created but can be destroyed. D) That matter can be created but cannot be destroyed. Show Answer Correct Answer: B) That matter cannot be created or destroyed. 10. Carbon is unique due to the carbon atom's A) Bonding properties. B) Ionic compounds. C) Hydrogen bonding strength. D) Six outer unpaired electrons. Show Answer Correct Answer: A) Bonding properties. 11. Mass percent of Hydrogen in NaOH is A) 2. B) 2.5. C) 3. D) 3.5. Show Answer Correct Answer: B) 2.5. 12. Which of the following dissolves in water because of ion-dipole attractions? A) Sugar. B) Ethanol. C) Sodium chloride. D) Carbon dioxide. Show Answer Correct Answer: C) Sodium chloride. 13. Atomic number of magnesium [Mg] in the periodic table ..... A) 11. B) 13. C) 14. D) 12. Show Answer Correct Answer: D) 12. 14. The mass of one Avogadro number of helium atom is A) 1.00 gram. B) 2.00 gram. C) 3.00 gram. D) 4.00 gram. Show Answer Correct Answer: D) 4.00 gram. 15. A neutral atom of hydrogen-2 contains (same as 2H) A) 2 protons, 2 electrons, and 4 neutrons. B) 2 protons, 2 electrons, and 2 neutrons. C) 1 proton, 1 electron, and 2 neutrons. D) 1 proton, 1 electron, and 1 neutron. Show Answer Correct Answer: D) 1 proton, 1 electron, and 1 neutron. 16. A molecule is ..... A) Two ions held together by opposite charges. B) Smaller than an atom. C) Can be physically separated into smaller atoms. D) More than one atom bonded together by covalent bonds. Show Answer Correct Answer: D) More than one atom bonded together by covalent bonds. 17. Which intermolecular force is present in all types of compounds? A) Dipole-dipole. B) Hydrogen Bond. C) Ion-dipole. D) London Forces. Show Answer Correct Answer: D) London Forces. 18. What is the symbol for Tungsten (use your reference tables-it's an element) A) Ti. B) Tc. C) V. D) W. Show Answer Correct Answer: D) W. 19. Which is more basic? A) PH of 7. B) PH of 12. C) PH of 6. D) PH of 1. Show Answer Correct Answer: B) PH of 12. 20. This kind of bond occurs when metals and non metals bond to have a full outer shell, one loses and the other gains electrons A) Ionic bond. B) Chemical bond. C) Covalent bond. D) Metallic bond. Show Answer Correct Answer: A) Ionic bond. ← PreviousNext →Related QuizzesScience QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 5Chemistry Quiz 6Chemistry Quiz 7Chemistry Quiz 8Chemistry Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books