Question

Which of these best explains why a paper clip can float on water?

Water has a very high specific heat.
Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid.
The metal in the paper clip has a lower mass than the water.
Water molecules near the surface produce more buoyant force than water molecules within the liquid.

Answer 1

@aaronq @ganeshie8

Answer 2

i think, The metal in the paper clip has a lower mass than the water..
when the mass is lower it will float
when the mass is bigger it will sink
when the mass is same, it will not float or sink

Answer 3

Technically, paperclips cannot float, but they can appear to float when suspended on the surface tension of water. Surface tension is like a “skin” on the surface of the water where water molecules bond together.

Here's a short video on how surface tension works:
https://www.youtube.com/watch?v=A8n678m6ZqI

So the answer to your question is "Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid."

Hope that helped!