Instructions: Write all your answers in the Zip Grade answer sheet by shading the letter that corresponds your answer. Use pencil al a T 1. Compounds have chemical formulas while elements have chemical symbols. Which of the following groups are considered to be compounds? A H2, Fe & Naci B. NaHCO3, He, & NaOH C. CaCl2, H20, & CaCO3 D. AI, C6H1206, & Zn 2. Which of the following is NOT an example of a compound? A. Calcium carbonate B. Oxygen gas C. Methane gas D. Table sugar 3. Which of the following ways can separate compounds into its components? A. Chemical means B. Mechanical separation C. Filtration D. Physical methods 4. Which of the following statements is TRUE? A. Compounds are more complex than elements. B. Compounds can be broken down by physical means. C. Compound is composed of more than two different elements. D. Ferric chloride cannot be broken down into simpler substances. 5. Which of the following is the best way Which of the following is the best way of differentiating elements and compounds? A. Elements and compounds can be separated chemically. B. Elements are physically combined while compounds are chemically combined. C. Elements are simple substances while compounds are complex substances. D. Elements are made of only one kind of atom while compounds are made up of two or more kinds of atoms 6. Which of the following choices below does NOT belong to the group? A Aluminum B. Copper C. Shampoo D. Table sugar 7. Which of the following substances does NOT belong to the group? A. Baking soda B. Carbohydrates C. Magnesium D.MSG 8. Which of the following substances is classified as a compound? A. Hydrogen gas B. Ozone C. Sulfur D. Water 9. Which of the following terms most accurately describes carbon dioxide? A. Compound B. Element C. Mixture D. Solution 10. Compounds are composed of two or more kinds of elements. Which of the following group of compounds is INCORRECT? A. MSG, baking powder, soy sauce C. Sugar, protein, carbohydrates S S -C​