What’s the number 9.1x10^3 in standard form

Write the complete balanced equation for the reaction between lead (iv) oxide (pbo2) and water (h2o).

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

What is the polyatamic ion of borate