The measure of the angle formed at the center of an oxygen atom in a water molecule k about 105 degrees . the angles formed at each hydrogen atom are congruent . what is the size of the angle at each hydrogen atom ?

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true