This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 7 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How many valence electrons does Carbon have? A) 3. B) 4. C) 5. D) 6. Show Answer Correct Answer: B) 4. 2. Compounds are made from the atoms of two or more ..... A) Solutions. B) Carbs. C) Mixtures. D) Elements. Show Answer Correct Answer: D) Elements. 3. Which of the following is an ionic bond? A) H3N. B) CaCl2. C) NO2. D) SCl. Show Answer Correct Answer: B) CaCl2. 4. It has at least two different phases of matter A) Homogeneous mixtures. B) Heterogeneous mixtures. C) Atom. D) Compound. Show Answer Correct Answer: B) Heterogeneous mixtures. 5. When dissolved in water, acids produce ..... A) Negative ions. B) Polyatomic ions. C) Hydrogen ions. D) Oxide ions. Show Answer Correct Answer: C) Hydrogen ions. 6. What is the number of moles in 9.63 L of H2S gas at STP? A) 0.104 mol. B) 0.430 mol. C) 3.54 mol. D) 14.7 mol. Show Answer Correct Answer: B) 0.430 mol. 7. Coined by Berzelius in 1907, it is any compound whose molecules contain carbon and is covalently bonded to other atoms such as H, N, and O. A) Organic Compounds. B) Inorganic Compounds. C) Molecular Compound. D) Physical Compound. Show Answer Correct Answer: A) Organic Compounds. 8. Solution that can take more solute under special conditions A) Saturated. B) Unsaturated. C) Concentrated. D) Supersaturated. Show Answer Correct Answer: D) Supersaturated. 9. Ductility is the ability of a metal to be ..... A) Rolled into thin sheets. B) Pulled into thin wires. C) Pressed into angles. D) Melted into molds. Show Answer Correct Answer: B) Pulled into thin wires. 10. Which solution is more concentrated? Solution 1:500 mL of water100 g of saltSolution 2:500 mL of water90 g of salt A) Solution 1. B) Solution 2. C) They have the same concentration. D) I have no idea. Show Answer Correct Answer: A) Solution 1. 11. Faraday's Law is associated with A) Electrolysis. B) Reaction of gases. C) Pressure of gases. D) Temperature and pressure. Show Answer Correct Answer: A) Electrolysis. 12. What is the formula of Glucose? A) C3H16O36. B) C632H123O239. C) C6H12O6. D) C12H6O12. Show Answer Correct Answer: C) C6H12O6. 13. Matter is anything that ..... A) Has mass and charge. B) Has mass and occuppies space. C) Has mass. D) Has mass and charge, and occupies space. Show Answer Correct Answer: B) Has mass and occuppies space. 14. It is the combination of two or more elements A) Mixture. B) Pure substance. C) Compound. D) Elements. Show Answer Correct Answer: C) Compound. 15. What is the chemical symbol for Sulfur? A) Si. B) Su. C) S. D) Sr. Show Answer Correct Answer: C) S. 16. The second energy orbital of an atom can hold up to ..... electrons. A) 1. B) 2. C) 4. D) 8. Show Answer Correct Answer: D) 8. 17. Hardness, temperature, color, size and smoothness are all ..... A) States of matter. B) Physical properties of matter. C) Chemical properties of matter. D) Used to describe elements but not compounds. Show Answer Correct Answer: B) Physical properties of matter. 18. What precipitate forms when you mix lead (II) nitrate with sodium chloride? A) Sodium nitrate. B) Lead (II) chloride. C) Sodium lead. D) Chloride nitrate. Show Answer Correct Answer: B) Lead (II) chloride. 19. Represents the atoms of elements and all of its electrons ..... A) Atomic theory. B) Lewis Dot structures. C) Periodic table. D) Bohr diagrams. Show Answer Correct Answer: D) Bohr diagrams. 20. What is the chemical symbol for Neon A) N. B) Ne. C) On. D) Eo. Show Answer Correct Answer: B) Ne. ← PreviousNext →Related QuizzesScience QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 5Chemistry Quiz 6Chemistry Quiz 8Chemistry Quiz 9Chemistry Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books