a. liquid oxygen
b. dry ice
5. Which of the following is used in the manufacture
a. oxygen
b. argon
6. Which of the following is a greenhouse gas?
amethane
b. oxygen
7. Which metal reacts spontaneously with oxygen?
a. gold
b. silver
8. Which of the following is used to prepare oxygen?
a. nitrogen dioxide
b. carbon monoxide
.
B. Fill in the blanks.
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Answer:
7 = gold
6= methene
8 = hydrogen peroxide
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