Which is a correct step in a scientific experiment involving acids and bases? a) Mixing two acids to form a neutral solution.
b) Using an indicator to measure the hydrogen ion concentration of a solution.
c)Pouring acid onto an indicator to measure the pH of the indicator.
d) Dissolving an indicator in an acidic solution to increase its pH.

In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?