Astudent is trying to determine if a solution is acidic or basic. she does not have any litmus paper. which would she most likely use to get a reading on her solution?

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s. a. determine jay’s mass. b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles