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

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm

True or false exosphere is the least dense

Amatch has about 21 milligrams of red phosphorus coating the tip. how many atoms of phosphorus is this?