H2so4 is added to a large beaker of water. how is the solution different from the original water?
a) the solution turns blue litmus to red.
b) the solution turns phenolphthalein pink.
c) the solution has fewer hydrogen ions.
d) the solution has more hydroxide ions.

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

When a septic tank backs up a goes in to clean it out

Light waves can move through , but they travel fastest when they move through a(n) .