If water had weak surface tension, insects would not be able to land on or walk on water.
Surface tension is the force acting on the surface of water that makes it to behave like a stretched elastic skin.
Surface tension owes to the intermolecular attraction between water molecules. The molecules at the surface of water are drawn inwards by other molecules causing the molecules at the surface to contract. This surface tension enables insects to land on or walk on water.
So, without surface tension of water, insects would not be able to land on or walk on water.
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Answer:
True.
Explanation:
The generation time of that species would determine the time needed for bacteria in the culture to multiply to a sufficiently large number of cells that can be observed as visible colonies.
Explanation:
when you perform electrolysis on water, you are turning water into hydrogen and oxygen gas, that's where the bubbles come from. ... You turned water into water vapor. The main difference is that electrolysis is a chemical change and boiling is a physical change.
When water is boiled, it undergoes a physical change, not a chemical change. The molecules of water don't break apart into hydrogen and oxygen.
One of the best electrolytes for water electrolysis is sulphuric acid (H2SO4). When it ionises in water, it breaks down, depending on its concentration, to either H+ and HSO4- or 2 H+ and SO4- -.
So that the starfishes surface doesn't get covered in encrusting organisms such as planktons or parasites.
