Aparticular molecule has two hydrogen atoms and two oxygen atoms. how do you know that this is not a molecule of water?

Difference between series and parallel circuits

The precision of a voltmeter is ±0.005 v. the accepted value for a measurement is 9.016 v. which measurement is in the accepted range? 9.005 v 9.006 v 9.018 v 9.025 v

Suppose that the half-life of an element is 1000 years. how many half-lives will it take before one-eighth of the original sample remains? 8 125 12.5 3