This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 16 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How are mixtures and solutions different form each other? A) There are no differences. B) Once combines chemically the other combines electronically. C) They have more than one elements in them. D) The mixture combines physically and the solution is not easily separated. Show Answer Correct Answer: D) The mixture combines physically and the solution is not easily separated. 2. Homogeneous mixture A) Solution. B) Compound. C) Pure Substance. D) Substance. Show Answer Correct Answer: A) Solution. 3. What are the four elements that all life is made up of? A) Hydrogen, Oxygen, Nitrogen and Carbon. B) Helium, Oxygen, Neon and Carbon. C) Hydrogen, Titanium, Carbon, Nitrogen. D) Oxygen, Chlorine, Iron, Nitrogen. Show Answer Correct Answer: A) Hydrogen, Oxygen, Nitrogen and Carbon. 4. A consumer wants to do his or her part to reduce the production of waste. Which one of the following is he or she likely to do? A) Buy products that cannot be recycled. B) Purchase fewer products. C) Buy from companies that use only new raw materials. D) All of the above. Show Answer Correct Answer: B) Purchase fewer products. 5. Which of the following terms is an example of a solvent? A) Salt. B) Sand. C) Water. D) Sugar. Show Answer Correct Answer: C) Water. 6. What are found in the space surrounding the nucleus of an atom? A) Protons. B) Electrons. C) Neutrons. D) Ions. Show Answer Correct Answer: B) Electrons. 7. Which two families are highly reactive? A) Transition metals and Noble Gases. B) Alkaline Earth Metals and Nitrogen family. C) Alkali Metals and Halogens. D) The Rare Earth metals and Oxygen family. Show Answer Correct Answer: C) Alkali Metals and Halogens. 8. Which one is a decomposition reaction? A) H2O$\rightarrow$H2+O. B) HC+O2$\rightarrow$CO2+H2O. C) 4Fe+3O2$\rightarrow$2Fe2O3. D) None of above. Show Answer Correct Answer: A) H2O$\rightarrow$H2+O. 9. The total number of protons and neutrons in the nucleus of an atom? A) Mass number. B) Atomic number. C) Atomic mass units. D) Law of Conservation of Mass. Show Answer Correct Answer: A) Mass number. 10. Which statement is TRUE of reactants in a chemical reaction? A) You write them on the right-hand side of the arrow. B) They are what get produced in a chemical reaction. C) They always stay the same. D) Are the substances that you start with. Show Answer Correct Answer: D) Are the substances that you start with. 11. Which is an example of a nucleic acid? A) Oil. B) Sugar. C) DNA. D) Red meat. Show Answer Correct Answer: C) DNA. 12. Why is Carbon Dioxide not on the Periodic Table? A) It is a compound not an element. B) It is a mixture not an element. C) It is combustible. D) It is an alloy. Show Answer Correct Answer: A) It is a compound not an element. 13. How many elements are in HHe A) 3. B) 4. C) 2. D) 5. Show Answer Correct Answer: C) 2. 14. Most of water's properties occur because it is ..... A) A polar covalent. B) Made with oxygen. C) A polar ionic. D) Makes up 75% of the Earth. Show Answer Correct Answer: A) A polar covalent. 15. Which of the following substances is a compound? A) Oxygen. B) Salt. C) Helium. D) None of above. Show Answer Correct Answer: B) Salt. 16. A ..... is made up of two or more different atoms, chemically combined. A) Compound. B) Mixture. C) Molecule. D) None of above. Show Answer Correct Answer: A) Compound. 17. When heat is added/absorbed, the temperature of matter increases and the particles ..... A) Speed up and move closer. B) Speed up and move farther apart. C) Slow down and move closer together. D) Slow down and move farther apart. Show Answer Correct Answer: B) Speed up and move farther apart. 18. H2 would be a ..... A) Molecule. B) Compound. C) Solid. D) Problem. Show Answer Correct Answer: A) Molecule. 19. Whattype of indicator, used in the science lab, will turn magenta when it iscombined with a strong base? A) Blue Litmus Paper. B) Phenolphthalein. C) PH paper. D) Red Litmus Paper. Show Answer Correct Answer: B) Phenolphthalein. 20. Turning a gas to a liquid is called ..... A) Evaporation. B) Condensation. C) Melting. D) Sublimation. Show Answer Correct Answer: B) Condensation. ← 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