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zysi [14]
3 years ago
14

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

Chemistry
1 answer:
Rudik [331]3 years ago
5 0

Answer:

1.  C. helium

2.  D. oxygen and acetylene

3.  B.  deliquescence

4.  C.  cutting very hard surfaces

5.  B.  3.5%

Explanation:

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