Find the pOH of a Ca(OH)2 solution that contains 10.374 grams Ca(OH)2 that is dissolved to make 2500 mL of solution.

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false