Question

choose the correct matching
(1) N2 molecule( ) a) singlebond
(2)O2 molecule( ) b) trible bond
(3)H2 molecule( ) c) double bond
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Answer 1

Answer:

100 cm = 1 m

1000 m = 1 km

500 cm = 5 m

500 m = 0.5 km

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Answer 2

Answer:

1 to b

2 to c

3 to a

Explanation:

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