This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry – Quiz 41 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 41 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In a chemical formula, the total positive charge and negative charge must add up to equal ..... A) 0. B) 1. C) 2. D) 3. Show Answer Correct Answer: A) 0. 2. Identifies an unknown substance by determining what its made of. A) Analytical Chemistry. B) Physical Chemistry. C) Organic Chemistry. D) Inorganic Chemistry. E) Biochemistry. Show Answer Correct Answer: A) Analytical Chemistry. 3. What group of biomolecules contain long hydrocarbon chains and are considered nonpolar? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Lipids. 4. Process from solid to gas. A) Sublimation. B) Vaporization. C) Condesation. D) Deposition. Show Answer Correct Answer: A) Sublimation. 5. $ Mg\left(CN\right)+\left(NH_4\right)Cl$ How would you rewrite this equation to balnce it. A) $ MgCl+\left(NH_4\right)\left(CN\right)$. B) $ MgCl+\left(NH\right)\left(CN\right)$. C) $ MgCl+\left(CN\right)\left(NH_4\right)$. D) None of above. Show Answer Correct Answer: A) $ MgCl+\left(NH_4\right)\left(CN\right)$. 6. A judgment based upon the results of an experiment is a ..... A) Hypothesis. B) Theory. C) Variable. D) Conclusion. Show Answer Correct Answer: D) Conclusion. 7. The study of compounds that do not contain carbon. A) Organic Chemistry. B) Inorganic Chemistry. C) Biochemistry. D) Analytical Chemistry. Show Answer Correct Answer: B) Inorganic Chemistry. 8. A pH of 14 is a ..... A) Strong acid. B) Weak acid. C) Strong base. D) Weak base. Show Answer Correct Answer: C) Strong base. 9. During a phase change, the temperature A) Increases. B) Decreases. C) Fluctuates. D) Stays the same. Show Answer Correct Answer: D) Stays the same. 10. Which branch of chemistry would study the heat given off when a chemical mixture called thermite burns? A) Organic. B) Theoretical. C) Physical. D) Analytical. Show Answer Correct Answer: C) Physical. 11. The ..... in a formula tells the number of atoms of each element present. A) Reactant. B) Product. C) Coefficient. D) Subscript. Show Answer Correct Answer: D) Subscript. 12. Ionic Bonding involves ..... A) The transfer of protons. B) The transfer of nuetrons. C) The transfer of electrons. D) None Of the above. Show Answer Correct Answer: C) The transfer of electrons. 13. The formula of methane is CH4. Which of these is true? A) A molecule of methane contains five atoms. B) A molecule of methane contains five different elements. C) An atom of methane contains two different elements. D) Methane contains five molecules. Show Answer Correct Answer: A) A molecule of methane contains five atoms. 14. An $ ionic\ compound$ has ..... charge. A) Positive. B) Negative. C) No charge. D) None of above. Show Answer Correct Answer: C) No charge. 15. What is the correct name for the following compound? Al2(SO4)3 A) Dialuminum trisulfate. B) Aluminum sulfate. C) Aluminum trisulfide. D) Sulfuric aluminate. Show Answer Correct Answer: B) Aluminum sulfate. 16. A substance containing atoms of two or more different elements chemically bonded together A) Compound. B) Mixture. C) Atom. D) Element. Show Answer Correct Answer: A) Compound. 17. How many Elements are in this compound? CuSO4 A) 3. B) 1. C) 4. D) 5. Show Answer Correct Answer: A) 3. 18. What is Polymer? A) Involves at least two different monomers. B) The long-chain molecule that is made from a combination of repeating basic units. C) The synthetic polymer that is elastic in nature or elastomer polymer. D) None of above. Show Answer Correct Answer: B) The long-chain molecule that is made from a combination of repeating basic units. 19. What is the smallest unit of matter that cannot be broken down by chemical means? A) Atom. B) Element. C) Ion. D) Isotope. Show Answer Correct Answer: A) Atom. 20. What is the study of heat changes that accompany chemical reactions and phase changes? A) Energy. B) Chemistry. C) Work. D) Thermochemistry. Show Answer Correct Answer: D) Thermochemistry. ← 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