The gas usually filled in the electric bulb is

A. nitrogen
B. hydrogen
C. carbon dioxide
D. oxygen

Washing soda is the common name for

A. Sodium carbonate
B. Calcium bicarbonate
C. Sodium bicarbonate
D. Calcium carbonate
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Answers

Answer 1

Answer:

1st answer:  A. nitrogen

2nd answer:  A. Sodium carbonate

Explanation:

Answer 2

The gas usually filled in the electric bulb is

OPTION A

Washing soda is the common name for

OPTION A


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