This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry Basics > Chemistry – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 17 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. Which is an example of a nucleic acid? A) Oil. B) Sugar. C) DNA. D) Red meat. Show Answer Correct Answer: C) DNA. 3. 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. 4. How many elements are in HHe A) 3. B) 4. C) 2. D) 5. Show Answer Correct Answer: C) 2. 5. 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. 6. Which of the following substances is a compound? A) Oxygen. B) Salt. C) Helium. D) None of above. Show Answer Correct Answer: B) Salt. 7. 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. 8. 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. 9. H2 would be a ..... A) Molecule. B) Compound. C) Solid. D) Problem. Show Answer Correct Answer: A) Molecule. 10. 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. 11. Turning a gas to a liquid is called ..... A) Evaporation. B) Condensation. C) Melting. D) Sublimation. Show Answer Correct Answer: B) Condensation. 12. The chemical formula Br2 + Cl2 + 29.4 kJ $\rightarrow$ 2BrCl is a ..... A) Endothermic. B) Catalyst. C) Concentration. D) Exothermic. Show Answer Correct Answer: A) Endothermic. 13. Why is the scientific method important? A) All of the answers have the correct information. B) To give people/scientists a way to answer questions that they have about the world. C) By following the steps in order, scientists are more likely to get valid, accurate results. D) When they write a detailed procedure, it allows other scientists to be able to repeat their experiment. Show Answer Correct Answer: A) All of the answers have the correct information. 14. As soon as force is acted on the Oobleck, for instance rolling it into a ball, it becomes a ..... A) Leather. B) Liquid. C) Gas. D) Solid. Show Answer Correct Answer: D) Solid. 15. During chemical and physical changes, substances can absorb or give off ..... A) Energy. B) Light. C) Gases. D) Particles. Show Answer Correct Answer: A) Energy. 16. Two or more materials that combine chemically form a(n) ..... A) Mixture. B) Compound. C) Physical. D) None of above. Show Answer Correct Answer: B) Compound. 17. The study of the composition, structure, and properties of matter and the changes it undergoes. A) Chemistry. B) Physics. C) Biology. D) Social Science. Show Answer Correct Answer: A) Chemistry. 18. Which one of the following characteristics is not correct for all of the members of the same homologous series? A) Same general formula. B) Similar chemical properties, i.e. undergo the same reactions. C) Varying physical properties, i.e. change in a predictable way. D) Different functional group. Show Answer Correct Answer: D) Different functional group. 19. Which statement best explains why solids do not take the shape of their containers? A) Particles in a solid are not bound together in fixed positions and are able to flow freely. B) Particles in a solid are in continuous, rapid, random motion and have no definite shape or volume. C) Particles in a solid are highly compressible and have a high rate of diffusion in other substances. D) Particles in a solid have a fixed shape and volume due to strong intermolecular forces. Show Answer Correct Answer: D) Particles in a solid have a fixed shape and volume due to strong intermolecular forces. 20. The area of study that focuses on the composition of matter. A) Biochemistry. B) Analytical Chemistry. C) Physical Chemistry. D) Inorganic Chemistry. Show Answer Correct Answer: B) Analytical Chemistry. ← PreviousNext →Related QuizzesChemistry QuizzesScience QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 5Chemistry Quiz 6Chemistry Quiz 7Chemistry Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books