Balance the reaction which forms ions. choose "blank" if no coefficient other than 1 is needed. pb(n03)2(aq) --> pb+2 + __ no3 -

Which of the following might a chemist choose to study? a. glacier movement in alaska b. better ways to recycle plastics c. the effects of hurricanes on turtle populations d. the vibrations in bridges caused by big trucks

Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?

Express the following number in scientific notation. 0.026890 =