Which term describes the repeated arrangement of the same molecule?

1. C

Carbon atoms

2. C

CH3CH2OH

3. C

extended structure

AND 4. B

One grey sphere, four white spheres, one red sphere

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lol idk man i guess u gotta ask bill nye the science guy

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.