What can be added to a solution to control the pH? A base

A liquid

A buffer

An acid

(Also my apologies if I labeled this as the wrong topic, this is my first time using this and I'm taking Psychical Science so... :( Sry)

Edward tolman explained the results of his study by theorizing that the rats were learning about the maze during every trial but they a. were agitated because other groups were getting reinforcement b. could not remember how to demonstrate it without reinforcement c. were not motivated to demonstrate it without reinforcement d. seemed to be too lazy to actually work without reinforcement

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter