6. name the trace element most important for making
bones :

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

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Joan writes four numbers on the board in standard form, and then she writes their scientific notation