6. Calcium chloride is a compound of the two elements calcium and chlorine. Which of the following statements is TRUE? A. Calcium chloride is listed in the periodic table. B. Chlorine may still be broken down into a simpler form. C. The symbol for calcium chloride includes Ca+2 ions and Cl- ions. D. Calcium and chlorine belong to the same group in the periodic table.
7. How does the element Iodine (I) from the iodized salt help the body system? A. It prevents goiter problems. B. It is a good food against diabetes. C. It keeps us away from being tired and anemic. D. It is a source of nutrients that fight osteoporosis.
14. Why is carbon dioxide classified as a compound?
A. It has variable proportion.
B. It is a basic simple substance.
C. Its elements are combined chemically.
D. It can be separated by physical processes.
7. How does the element Iodine (I) from the iodized salt help the body system? A. It prevents goiter problems. B. It is a good food against diabetes. C. It keeps us away from being tired and anemic. D. It is a source of nutrients that fight osteoporosis.
14. Why is carbon dioxide classified as a compound?
A. It has variable proportion.
B. It is a basic simple substance.
C. Its elements are combined chemically.
D. It can be separated by physical processes.
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Answer:
1. A
2. C
3. B
Explanation:
Here are examples of mixtures that can be separated using decantation:
Oil and water: Oil floats on top of water. ...
Dirt and water: Decantation is one way to clean muddy water. ...
Kerosene and water (or gasoline and water): The kerosene or gasoline floats above the water.
hope it help
Answer:
1.A
2.C
3.B
Explanation:
correct me if im wrong ttjankyo.