This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry – Quiz 48 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 48 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is not true about chemical reactions? A) The reactants and products contain the same types of atoms. B) The reactants and products have different properties. C) The reactants and products are the same substances. D) The reactants and products are different substances. Show Answer Correct Answer: C) The reactants and products are the same substances. 2. When elements chemically combine, which best describes the resulting compound? A) It has different ratios of atoms. B) It has different types of matter. C) It has the same properties as the uncombined elements. D) It has different properties from the uncombined elements. Show Answer Correct Answer: D) It has different properties from the uncombined elements. 3. An ion with a positive charge. A) Cation. B) Anion. C) Electrode. D) Isotope. Show Answer Correct Answer: A) Cation. 4. State of matter that has no definite shape and no definite volume A) Gas. B) Liquid. C) Solid. D) None of above. Show Answer Correct Answer: A) Gas. 5. Compounds are different than elements because compounds are- A) A combination of two or more elements. B) B)not able to be broken down into parts. C) Made from the same type of atoms. D) A pure substance, elements are not. Show Answer Correct Answer: A) A combination of two or more elements. 6. Chemicals that act as biological catalysts by speeding up reactions in living things are called A) Inhibitors. B) Enzymes. C) Fuels. D) Reactants. Show Answer Correct Answer: B) Enzymes. 7. Can be observed without changing into a nother substance A) Physical property. B) Chemical Property. C) Solubility. D) Ooga booga. Show Answer Correct Answer: A) Physical property. 8. What is the formula for calcium carbonate? A) CaCO. B) Ca2(CO3)2. C) CaCO3. D) Ca3CO. Show Answer Correct Answer: C) CaCO3. 9. How many oxygen (0) atoms are in Al(NO3)3? A) 13. B) 9. C) 15. D) 6. Show Answer Correct Answer: B) 9. 10. The amount of matter or stuff in an object A) Volume. B) Mass. C) Force. D) Matter. Show Answer Correct Answer: B) Mass. 11. What type of element usually has a dullappearance and is generally NOT a good conductor of heat or electricity? A) Metal. B) Metalloid. C) Nonmetal. D) Solid. Show Answer Correct Answer: C) Nonmetal. 12. Matter that flows but has a definite volume A) Solid. B) Liquid. C) Gas. D) Plasma. Show Answer Correct Answer: B) Liquid. 13. The strong forces of attraction between the positive and negative regions of molecules are called A) Dipole-dipole forces. B) London forces. C) Lattice forces. D) Orbital forces. Show Answer Correct Answer: A) Dipole-dipole forces. 14. Iron, mercury, lead, sulfur, chlorine, sodium, and uranium are all examples of which type of matter? A) Atoms. B) Compounds. C) Elements. D) Mixtures. Show Answer Correct Answer: C) Elements. 15. Thermal energy is transferred between objects when they have A) The same mass. B) Different masses. C) Different temperatures. D) The same energy. Show Answer Correct Answer: C) Different temperatures. 16. Which of the following is NOT an example of matter? A) Sun. B) Air. C) Snow. D) Thoughts. Show Answer Correct Answer: D) Thoughts. 17. What is the name of soap preparation? A) Hydrolysis. B) Soapication. C) Sulphonation. D) Saponification. Show Answer Correct Answer: D) Saponification. 18. The basic unit of all matter is called a(n) A) Atom. B) Molecule. C) Element. D) Compound. Show Answer Correct Answer: A) Atom. 19. 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) Physical change. B) Chemical change. C) Physical property. D) Chemical property. Show Answer Correct Answer: C) Physical property. 20. 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) 20%. C) 25%. D) 30%. Show Answer Correct Answer: B) 20%. ← 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