This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Chemistry > Chemistry Basics > Chemistry – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 17 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Iron, mercury, lead, sulfur, chlorine, sodium, and uranium are all examples of which type of matter? A) Elements. B) Compounds. C) Atoms. D) Mixtures. Show Answer Correct Answer: A) Elements. 2. Thermal energy is transferred between objects when they have A) The same mass. B) Different temperatures. C) The same energy. D) Different masses. Show Answer Correct Answer: B) Different temperatures. 3. Which of the following is NOT an example of matter? A) Thoughts. B) Air. C) Sun. D) Snow. Show Answer Correct Answer: A) Thoughts. 4. What is the name of soap preparation? A) Hydrolysis. B) Saponification. C) Sulphonation. D) Soapication. Show Answer Correct Answer: B) Saponification. 5. The basic unit of all matter is called a(n) A) Atom. B) Compound. C) Element. D) Molecule. Show Answer Correct Answer: A) Atom. 6. Convert 8 kilometers to meters A) .008 m. B) 800 m. C) 80, 000 m. D) 8, 000 m. Show Answer Correct Answer: D) 8, 000 m. 7. Any characteristic of a material, such as shape or size, that you can observe or attempt to observe without changing the identity of the material. A) Chemical change. B) Chemical property. C) Physical change. D) Physical property. Show Answer Correct Answer: D) Physical property. 8. Jessie estimates the weight of her cat to be 8 pounds. The actual weight of the cat was 10 pounds. Find the percent error. A) 15%. B) 30%. C) 20%. D) 25%. Show Answer Correct Answer: C) 20%. 9. What are Heterogeneous mixtures? A) The component substances are evenly distributed throughout the mixture. The composition is uniform. B) A property that depends on the amount of matter in a sample. C) The components are unevenly distributed with a non-uniform composition. D) Characteristics that can be observed/measured without changing the identity of the substance. Show Answer Correct Answer: C) The components are unevenly distributed with a non-uniform composition. 10. Which substance is chemically combined? A) Mixture. B) Compound. C) Element. D) Property. Show Answer Correct Answer: B) Compound. 11. Which word means to be pounded into sheets? A) Ductile. B) Malleable. C) Dissolvable. D) Ferment. Show Answer Correct Answer: B) Malleable. 12. It is a substance that cannot be separated into simpler substances by chemical means. A) Matter. B) Element. C) Mixture. D) Compound. Show Answer Correct Answer: B) Element. 13. What is the study of the composition, structure, and properties of MATTER? A) Biology. B) Physics. C) Geology. D) Chemistry. Show Answer Correct Answer: D) Chemistry. 14. In a molecule of fluorine, the two shared electrons give each fluorine atom ..... electron(s) in the outer energy level. A) 8. B) 32. C) 3. D) 1. Show Answer Correct Answer: A) 8. 15. Matter is a composition that is always the same is ..... A) Atom. B) Substance. C) Matter. D) Mixture. Show Answer Correct Answer: B) Substance. 16. What is the difference between HO and He? A) HO what santa says while delivering presents. B) No difference. C) HO is two elements because both are caps and He is one element since it is lower case. D) They are both two atoms. Show Answer Correct Answer: C) HO is two elements because both are caps and He is one element since it is lower case. 17. What type of elements are generally found in covalent drawings? A) Non-metals. B) Metals. C) Metals and non-metals. D) None of above. Show Answer Correct Answer: A) Non-metals. 18. Which of the following describes covalent bonds? A) Covalent bonds are magical. B) Bonds form because of opposite charges. C) Electrons are transferred between atoms. D) Bonds form to fill outer electron shells. Show Answer Correct Answer: D) Bonds form to fill outer electron shells. 19. These are found on the Periodic Table. A) Compounds. B) Elements. C) Mixtures. D) None of above. Show Answer Correct Answer: B) Elements. 20. In a reaction, the amount of product was calculated to be 10.0 g. In the lab, the amount of product obtained was 8.2 g. Find the percent yield. A) 82%. B) 0.82%. C) 122%. D) 8.2%. Show Answer Correct Answer: A) 82%. 21. Alters a substance without changing its composition A) Chemical Reaction. B) Physical Change. C) Chemical Change. D) Physical Reaction. Show Answer Correct Answer: B) Physical Change. 22. Which statement is correct about the enantiomers of a chiral compound? A) Their physical properties are different. B) All their chemical reactions are identical. C) A racemic mixture will rotate the plane of polarized light. D) They will rotate the plane of polarized light in opposite directions. Show Answer Correct Answer: D) They will rotate the plane of polarized light in opposite directions. 23. Alex wants to mix two substances together and to find out if a chemical reaction happens. What should he do? A) Test the solubility before and after mixing. B) Measure the volume before and after mixing. C) Measure the mass before and after mixing. D) Test the density of the before substance but not the after substances. Show Answer Correct Answer: A) Test the solubility before and after mixing. 24. When biomolecular subunits are joined together, what is produced or is a byproduct? A) Oil. B) Sugar. C) Protein. D) Water. Show Answer Correct Answer: D) Water. 25. What is it called when a liquid at times acts like a solid? A) A watery substance. B) Non-liquid Seuss substance. C) A gas substance. D) Non-Newtonian substance. Show Answer Correct Answer: D) Non-Newtonian substance. 26. Which of the following is an example of $ Heterogeneous\ Mixture$ . A) Oil & water. B) Salt & water. C) Sugar & water. D) None of above. Show Answer Correct Answer: A) Oil & water. 27. Which subatomic particle has a positive charge? A) Nucleus. B) Neutrons. C) Protons. D) Electrons. Show Answer Correct Answer: C) Protons. 28. Which equations represent the incomplete combustion of methane? I. CH4(g) + 2 O2(g) $\rightarrow$ CO2(g) + 2 H2O(g)II. CH4(g) + 1 1/2 O2(g) $\rightarrow$ CO(g) + 2 H2O(g)III. CH4(g) + O2(g) $\rightarrow$ C(s) + 2 H2O(g) A) I and II only. B) I and III only. C) II and III only. D) I, II and III. Show Answer Correct Answer: C) II and III only. 29. A ..... is a substance made of two or more DIFFERENT elements chemically combined. A) Mixture. B) Compound. C) Substance. D) None of above. Show Answer Correct Answer: B) Compound. 30. Physical properties of a substance include A) Color and odor. B) Melting and boiling points. C) Malleability. D) All of the above. Show Answer Correct Answer: D) All of the above. 31. The compound baking soda has a chemical formula of NaHCO3. How many elements are in one molecule of baking soda? A) 3. B) 12. C) 4. D) 6. Show Answer Correct Answer: C) 4. 32. If an atom has 10 electrons, how many protons does it have? A) 0. B) 1. C) 5. D) 10. Show Answer Correct Answer: D) 10. 33. The variables in an experiment that stay the same are the- A) Independent Variable. B) Dependent Variable. C) Constants/ Controls. D) None of above. Show Answer Correct Answer: C) Constants/ Controls. 34. What is the part of the chemical equation in green called? Fe + S $\rightarrow$ FeS A) Yield. B) Chemical formula. C) Products. D) Reactants. Show Answer Correct Answer: D) Reactants. 35. The mass per unit volume of a substance A) Concentration. B) Matter. C) Mixture. D) Density. Show Answer Correct Answer: D) Density. 36. If an alkane has 20 carbon atoms, how many hydrogen atoms will it have? A) 22. B) 20. C) 42. D) 40. Show Answer Correct Answer: C) 42. 37. What is the octet rule? How many valence electrons can the first three periods hold? A) 8. B) 2 8 16. C) 2. D) 2 8 8. Show Answer Correct Answer: D) 2 8 8. 38. What is the density of water? A) 1 g/ml. B) 0 g/ml. C) 10 g/ml. D) 100 g/ml. Show Answer Correct Answer: A) 1 g/ml. 39. One half the distance between the nuclei of two atoms of the same element when the atoms are joined. A) Electron Affinity. B) First Ionization Energy. C) Electronegativity. D) Atomic Radius. Show Answer Correct Answer: D) Atomic Radius. 40. Durning a phase change the temperature of a substance ..... A) Always stays the same. B) Always increases. C) Varies. D) Always decreases. Show Answer Correct Answer: A) Always stays the same. 41. Graphene sheets burn at A) A higher temperature than graphite. B) The same temperature as graphite. C) A lower temperature than graphite. D) None of above. Show Answer Correct Answer: C) A lower temperature than graphite. 42. Some dog foods contain corn and wheat that provide the dog with carbohydrates. Why are carbohydrates important to cell processes? A) They form cell membranes. B) They make amino acids. C) They are a source of energy. D) They help chemical processes happen. Show Answer Correct Answer: C) They are a source of energy. 43. Which are the following are used to make detergents? i. petroleumii. fats or oils.iii. sodium hydroxideiv. glycerol A) Ii and i. B) I and iv. C) I and iii. D) Iii and iv. Show Answer Correct Answer: C) I and iii. 44. How many principles does green chemistry implement? A) 12. B) 14. C) 10. D) 11. Show Answer Correct Answer: A) 12. 45. A(n) ..... includes the symbol for the element surrounded by dots. A) Element symbol. B) Bohr symbol. C) Clarence symbol. D) Lewis symbol. Show Answer Correct Answer: D) Lewis symbol. 46. While working on an activity to investigate chemical reactions, a student mixes two clear liquids in a beaker. When the two liquids mix, the result is a clear liquid and an orange solid precipitate. Which best describes the reactants that the student worked with? A) The initial two clear liquids. B) The resulting clear liquid and the beaker. C) The orange solid precipitate. D) All of the above. Show Answer Correct Answer: A) The initial two clear liquids. 47. A quality or condition of a substance that can be observed or measured without changing the substance's composition. A) Chemical property. B) Physical property. C) Specific heat capacity. D) Refractive index. Show Answer Correct Answer: B) Physical property. 48. What type of bond occurs between atoms that share electrons? A) Covalent. B) Ionic. C) Hydrogen. D) None of above. Show Answer Correct Answer: A) Covalent. 49. Chemists who study the chemistry of living organisms work in the field of ..... A) Organic chemistry. B) Analytical chemistry. C) Physical chemistry. D) Biochemistry. Show Answer Correct Answer: D) Biochemistry. 50. Grams = ..... kilograms A) 10. B) 0.0001. C) 1. D) 1, 000, 000. Show Answer Correct Answer: C) 1. 51. The substance that is dissolved by the solvent in a solution is called the A) Solute. B) Colloid. C) Solution. D) Suspension. Show Answer Correct Answer: A) Solute. 52. The branch of Chemistry which deals with substances containing $ carbon$ is called ..... A) Organic. B) Inorganic. C) Industrial. D) Analytical $ carbon$. Show Answer Correct Answer: A) Organic. 53. Define a Chemical Property A) A property or behavior of a substance which undergoes a chemical change or reaction. B) A property of matter not involving in its manifestation a chemical change. C) A property which depends on the objects size or matter. D) A property which makes the object smell or taste different. Show Answer Correct Answer: A) A property or behavior of a substance which undergoes a chemical change or reaction. 54. Mass is measured in the base unit of ..... A) Gramps. B) Newtons. C) Grams. D) Pounds. Show Answer Correct Answer: C) Grams. 55. An ion with a negative charge. A) Electrode. B) Anion. C) Cation. D) Isotope. Show Answer Correct Answer: B) Anion. 56. Which element is a poor conductor of electricity, unmalleable and a non-metal? A) Aluminum (Al). B) Iron (Fe). C) Calcium (Ca). D) Chlorine (Cl). Show Answer Correct Answer: D) Chlorine (Cl). 57. What are the three particles that make up all atoms? A) Protons, neutrons, and isotopes. B) Neutrons, isotopes, and electrons. C) Positive, negative, and neutrals. D) Protons, neutrons, and electrons. Show Answer Correct Answer: D) Protons, neutrons, and electrons. 58. Chemistry is the scientific study of ....., its properties and reactions to form new substances. A) Elements. B) Matter. C) Laws. D) Substance. Show Answer Correct Answer: B) Matter. 59. The ability or inability of a substance to combine with or change into one or more new substances A) Chemical change. B) Physical property. C) Chemical property. D) Physical change. Show Answer Correct Answer: C) Chemical property. 60. Finding out how much nitrogen is in a sample of air A) Analytical. B) Inorganic. C) Physical. D) Organic. Show Answer Correct Answer: A) Analytical. ← 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