statement Il is FALSE.
12. Airon Jay is fond of eating cereal drink even if he is already in grade 7. What
compounds do Airon Jay has taken?
1. Iron pyrophosphate
II. Calcium chloride
III. Sodium bicarbonate
IV. Zinc sulfate
A. I and II only
B. I and III only
C. II and III only
D. I and IV only
13. Danica was assigned by her teacher to match compound with its constituent
elements. Which do you think of her matched pair are correct?
I. Calcium chloride : calcium, chlorine
II. Water : nitrogen, oxygen
III. Carbon dioxide, carbon, oxygen
IV. Salt: sodium, magnesium
A. I and II only
B. I and III only
C. II and III only
D. I and IV only
Answers
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Explanation:
1. I AND II
2. II AND III
I think these are the answers....
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12. Airon Jay has taken both Iron pyrophosphate and Calcium chloride.
- Cereal drinks have a high content of sugar and starch (carbohydrates).
- They act as a quick source of energy.
- Too much cereal drinks can lead to obesity.
13. The correct matched pairs are Calcium chloride : calcium, chlorine and Carbon dioxide, carbon, oxygen.
- Compounds are made of two or more than two kinds of elements.
- These elements combine in a fixed ratio to form a compound.
- Formula for calcium chloride is CaCl2.
- Formula for carbon dioxide is CO2.
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