3different common acids name description and uses

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Predict the products butane (c4h10) + oxygen —>

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