Which of the following is using chemical potential energy? o a. a petal falling from a flower o b. a water wheel turning in a stream o c. an apple hanging on a tree o d. a hiker eating an energy bar

Asa choose the correct set of reaction coefficients to properly balance the following chemical equation according to the law of conservation of mass: __s8 + __o2 ==> __so2 1, 1, 8 1, 8, 1 1, 8, 8 8, 1, 1

Word equation for k+ h2o yield koh + h2

The number at the end of an isotope’s name is the number.