This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry – Quiz 43 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 43 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The energy of the moving particles of a substance is A) Heat energy. B) Nuclear energy. C) Mechanical energy. D) Radiant energy. Show Answer Correct Answer: A) Heat energy. 2. One of the properties all acids share is A) No color. B) Color. C) Sour taste. D) Bitter taste. Show Answer Correct Answer: C) Sour taste. 3. If the number of protons equal the number of ....., the atom will have no charge A) Protons. B) Neutrons. C) Electrons. D) Nucleus. Show Answer Correct Answer: C) Electrons. 4. Molar mass is in units of ..... A) Grams. B) Grams/mole. C) Mole. D) Moles/gram. Show Answer Correct Answer: B) Grams/mole. 5. The first energy orbital of an atom can hold up to ..... electrons. A) 1. B) 2. C) 4. D) 8. Show Answer Correct Answer: B) 2. 6. Which of the following IS a physical change? A) Getting a haircut. B) Rusty metal. C) Sour milk. D) A compound. Show Answer Correct Answer: A) Getting a haircut. 7. Isotopes are atoms of the same element that have different A) Masses. B) # of protons. C) # of electrons. D) Chemical properties. Show Answer Correct Answer: A) Masses. 8. What two subatomic particles are found in the nucleus? A) Protons and Electrons. B) Neutrons and Electrons. C) Protons and Neutrons. D) Electrons only. Show Answer Correct Answer: C) Protons and Neutrons. 9. How many oxygen atoms are in the chemical formula (2Fe2O3)? A) 6. B) 3. C) 2. D) 4. Show Answer Correct Answer: B) 3. 10. What is the electron configuration of Sulfur using noble gas method? A) [Ne]3s1. B) [Ne]3s23p4. C) [Ne]3s23p3. D) [Ne]3s33p3. Show Answer Correct Answer: B) [Ne]3s23p4. 11. When an atom loses a valence electron, it becomes a(n) ..... ion. A) Positive. B) Negative. C) Neutral. D) Polyatomic. Show Answer Correct Answer: A) Positive. 12. Which subatomic particles contribute the most to the mass of an atom? A) Protons, Neutrons, Electrons. B) Protons only. C) Protons and Electrons. D) Protons and Neutrons. Show Answer Correct Answer: D) Protons and Neutrons. 13. Which of the homologous series below does not contain C=O? A) Aldehyde. B) Ester. C) Amide. D) Ether. Show Answer Correct Answer: D) Ether. 14. Building blocks of polymers. A) Monomer. B) Polypeptide. C) Monosaccharide. D) Glycerol. Show Answer Correct Answer: A) Monomer. 15. The following laboratory glass wares are used for measuring liquid, which is best to use in getting density? The following laboratory glass wares are used for measuring liquid, which is best to use in getting density? A) Beaker. B) Graduated cylinder. C) Test tube. D) Volumetric flask. Show Answer Correct Answer: B) Graduated cylinder. 16. A substances that dissolves in a liquid A) Solvent. B) Salt. C) Solute. D) Sugar. Show Answer Correct Answer: C) Solute. 17. The number of moles of solute present in 1 kg of a solvent is called its A) Molality. B) Molarity. C) Formality. D) Normality. Show Answer Correct Answer: A) Molality. 18. An atom that has lost an electron and now has a positive charge is an ion called A) Cation. B) Anion. C) Malleable. D) Ductile. Show Answer Correct Answer: A) Cation. 19. How many atoms of lead are in one mole of lead? A) 53. B) 63.55g. C) 126.9. D) 6.02 x 1023. Show Answer Correct Answer: D) 6.02 x 1023. 20. Created the Planetary Model of the atom A) Bohr. B) Dalton. C) Rutherford. D) Chadwick. Show Answer Correct Answer: A) Bohr. ← 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