This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry Basics > Chemistry – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 22 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How does oxygen become an oxide ion? A) It loses 2 electrons. B) It gains 2 electrons. C) It shares electrons. D) It releases energy. Show Answer Correct Answer: B) It gains 2 electrons. 2. It is one of the frontiers that the chemists are currently exploring in relation to the prevention and treatment of diseases, and research about potent drugs. A) Health and Medicine. B) Materials and Technology. C) Food and Agriculture. D) Energy and Environment. Show Answer Correct Answer: A) Health and Medicine. 3. The following are the physical properties of Graphene except A) Translucent. B) Bad heat insulator. C) Hard and strong. D) Permeable. Show Answer Correct Answer: D) Permeable. 4. What is a pure substance that cannot be broken down into any other substance by physical or chemical means. Ex:Gold, Silver, Oxygen, & Nitrogen A) Element. B) Compound. C) Mixture. D) Salad. Show Answer Correct Answer: A) Element. 5. The mass of $ one\ MOLE$ of a substance is called ..... A) Atomic mass. B) Formula mass. C) Molar mass. D) Molecular mass. Show Answer Correct Answer: C) Molar mass. 6. The Maillard reaction usually requires ..... in the cooking process. A) Ice. B) Cold weather. C) Heat. D) Hot weather. Show Answer Correct Answer: C) Heat. 7. What's the difference between a prokaryotic cells and euykarotic cells? A) Only prokaryotic cells have cytoplasm. B) Only eukaryotic cells have a cell membrane. C) Only prokaryotic cells have genetic material. D) Only eukaryotic cells have membrane-bound organelles. Show Answer Correct Answer: D) Only eukaryotic cells have membrane-bound organelles. 8. Which branch of chemistry would look at the efficiency of a medication based on its reactions within a human body? A) Organic. B) Inorganic. C) Biochemistry. D) Physical. Show Answer Correct Answer: C) Biochemistry. 9. How do gates at an event function in a similar way to the cell membranes? A) Gates charge you to get in. B) Gates keep everything out. C) Gates control how people enter and exit. D) All of the above. Show Answer Correct Answer: C) Gates control how people enter and exit. 10. Matter with a definite shape and volume A) Solid. B) Liquid. C) Gas. D) Plasma. Show Answer Correct Answer: A) Solid. 11. An element is made of ..... A) Atoms that are all the same. B) Different types of atoms. C) Air. D) Liquids and solids. Show Answer Correct Answer: A) Atoms that are all the same. 12. Gallons = ..... hL A) 0.19. B) 0.20. C) 20. D) 1900. Show Answer Correct Answer: B) 0.20. 13. Which of the following are NOT signs that a chemical reaction occured? A) The properties changed. B) Bubbles of gas formed. C) Color stays the same. D) Smells different. Show Answer Correct Answer: C) Color stays the same. 14. The chemical bond formed when two atoms share electrons is called a(n) A) Ionic bond. B) Orbital bond. C) Lewis structure. D) Covalent bond. Show Answer Correct Answer: D) Covalent bond. 15. Which units of measurement are used for volume? A) Grams. B) Centimeters. C) Grams/milliliter. D) Milliliter. Show Answer Correct Answer: D) Milliliter. 16. What is the simplest form that cannot be broken down to anything simpler? A) Element. B) Solution. C) Compound. D) None of above. Show Answer Correct Answer: A) Element. 17. Water (H2O) and table salt (NaCl) can be combined to form salt water. How can this combination be classified? A) As a compound because the water (H2O) and table salt (NaCl) are chemically combined. B) As a compound because the water (H2O) and table salt (NaCl) form a new pure substance. C) As a mixture because the water (H2O) can be evaporated and physically separated from the table salt (NaCl). D) As a mixture because the water (H2O) is nonpolar and can be chemically separated from the table salt (NaCl). Show Answer Correct Answer: C) As a mixture because the water (H2O) can be evaporated and physically separated from the table salt (NaCl). 18. When iron and oxygen combine to form iron oxide, A) A physical change occurs. B) A change of state occurs. C) A change in mass occurs. D) A chemical change occurs. Show Answer Correct Answer: D) A chemical change occurs. 19. Starting substance in a chemical reaction A) Reactant. B) Product. C) Energy. D) Elements. Show Answer Correct Answer: A) Reactant. 20. Are made from a combination of 2 or more elements ..... A) Molecules. B) Pure Substances. C) Compounds. D) Elements. Show Answer Correct Answer: C) Compounds. ← 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