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"Ca" is the chemical symbol for which element? 1. Calcium Argon Helium Carbon 2. "N" is the chemical symbol for which element? Carbon Nylon Nitrogen Helium Salt contains the elements sodium and chlorine. The chemical symbol for these elements is: 3. Fe and Ti Sm and Cn So and Ce Na and Cl Which of the following is NOT an element: 4. plastic titanium sulfur hydrogen 5. Which of the following is NOT an example of a chemical reaction. breaking into pieces temperature change creating light gas is produced Which of the following IS an example of a chemical reaction? 6. change in texture change in shape change in appearance a precipitate formed (like in the water- grape juice-milk lab). 7. A ________________ is made of two or more elements that are chemically bonded to form a new substance. compound ion element atom A _____________ is the smallest part of any element that can no longer be divided by physical means. 8. ion element atom compound True False True or False: 9. Water (H2O) is NOT a compound. 10. True or False: C02, also known as carbon dioxide, is a compound. True False 11. True or False Sodium (Na) is a compound. True False Tylenol is made from the elements carbon, hydrogen nitrogen, and oxygen. It is considered a compound because: 12. it is not a compound. it is made of 4 elements, and a compoundmust have 2 or more elements. it is the smallest part of an element. because you can buy it at Wal-Mart. |