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.

What is created when solids,liquids,an gases mix with one another

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?

Which model displays the change in a gas when the temperature of the gaseous system decreases?