This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry Basics > Chemistry – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 6 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... are things you can observe and describe about matter without changing it chemically. A) Physical changes. B) Chemical changes. C) Physical properties. D) Chemical properties. Show Answer Correct Answer: C) Physical properties. 2. All chemical reactions need a certain amount of ..... to get started. A) Catalyst. B) Energy. C) Activation energy. D) Decomposition. E) Chemical changes. Show Answer Correct Answer: C) Activation energy. 3. Branch of chemistry that is concerned with the study of structure, properties, composition, and reactions of carbon-containing compounds. A) Biochemistry. B) Organic Chemistry. C) Inorganic Chemistry. D) Analytical Chemistry. Show Answer Correct Answer: B) Organic Chemistry. 4. A group of students are testing several solutions to determine if they are acidic or basic. Which piece(s) of laboratory safety equipment should be worn during the investigation? A) Goggles. B) Goggles and gloves. C) Goggles and aprons. D) Goggles, gloves, and aprons. Show Answer Correct Answer: D) Goggles, gloves, and aprons. 5. Give the name of this compound ..... C3H8 A) Propene. B) Butane. C) Butene. D) Propane. Show Answer Correct Answer: D) Propane. 6. A characteristic of matter that you can observe or measure without changing the identity of the matter A) Physical change. B) Physical property. C) Chemical change. D) Chemical property. Show Answer Correct Answer: B) Physical property. 7. Two science studentsare setting up a science experiment to determine the qualities of an unknownclear liquid. They gather the necessarymaterials to make their tests, including blue litmus paper. Why do they need blue litmus paper? A) Blue litmus paperis used when working with acid to clean up the spills. B) To test foracidity, blue litmus paper turns red in the presence of an acid. C) Totest for alkalinity, blue litmus paper turns red in the presence of an alkaline. D) To test forwater, blue litmus paper dissolves immediately upon contact with water. Show Answer Correct Answer: B) To test foracidity, blue litmus paper turns red in the presence of an acid. 8. ..... is the branch of chemistry that would identify enzymes and determine reaction mechanisms for biochemical reactions. Pick the ONE that best represents this A) Organic Chemistry. B) Biochemistry. C) Physical Chemistry. D) Analytical Chemistry. Show Answer Correct Answer: B) Biochemistry. 9. ..... are organic compounds that are good sources of energy. They contain carbon, hydrogen, and oxygen in a 1:2:1 ratio A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: A) Carbohydrates. 10. What causes water to have a high specific heat? A) Hydrogen Bonding. B) Ionic Bonds. C) Nonpolar Covalent Bonds. D) Polar Covalent Bonds. Show Answer Correct Answer: A) Hydrogen Bonding. 11. The type of chemistry involved in finding out how much nitrogen is in a sample of air. A) Organic. B) Inorganic. C) Analytical. D) Physical. Show Answer Correct Answer: C) Analytical. 12. To form a solution by mixing evenly A) Solubility. B) Concentration. C) Dissolve. D) Substance. Show Answer Correct Answer: C) Dissolve. 13. These elements are dull, brittle, and poor conductors. A) Metals. B) Nonmetals. C) Metalloids. D) Transformers. Show Answer Correct Answer: B) Nonmetals. 14. What two particles determine the mass number? A) Protons and electrons. B) Electrons and neutrons. C) Protons and neutrons. D) None of above. Show Answer Correct Answer: C) Protons and neutrons. 15. The horizontal rows on the periodic table are known as A) Periods. B) Atoms. C) Groups or families. D) Valence electrons. Show Answer Correct Answer: A) Periods. 16. What is the formula of Sodium sulphate A) NaSO2. B) Na2SO3. C) Na2SO4. D) None of the above. Show Answer Correct Answer: C) Na2SO4. 17. What is the percentage by mass of oxygen in a formula unit of sodium hydrogen carbonate (NaHCO3)? A) 19.05%. B) 28.57%. C) 38.09%. D) 57.14%. Show Answer Correct Answer: D) 57.14%. 18. What are the uses of silicone-butadiene rubber? A) Stapler. B) Rubber bands. C) Book. D) None of above. Show Answer Correct Answer: B) Rubber bands. 19. The building blocks of ..... are fatty acids, which contain a carboxyl group and a hydrocarbon chain. A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Lipids. 20. A milk shake is a(n) A) Mixture. B) Compound. C) Element. D) None of above. Show Answer Correct Answer: A) Mixture. ← PreviousNext →Related QuizzesChemistry QuizzesScience QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 5Chemistry Quiz 7Chemistry Quiz 8Chemistry Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books