A sample of helium has a volume of 3.49 L at 741 mmHg. What would be the volume if the pressure were changed to 760 mmHg at the same temperature?

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The answer is falsegravitational force is independent of medium and depends only on the masses of the two objects and the distance between them.

According to arrhenius theory of acid and bases, an acid is a proton donor, while base donates hydroxyl ions. further, acid and base reacts to form salt and water.consider following example.hcl    +      h2o          →      cl-          +      h3o+here, hcl has donated a proton, hence it is an acid.now consider following reactionhcl      +      naoh            ↔      nacl      +        h2oin this reaction, hcl donates proton, hence it is acid. on other hand, naoh donates hydroxyl ion (i.e. hence it is a base.