Which of the following is the best example of erosion?
a. sediment piling up at the mouth of a river
b. plant roots growing through concrete and splitting it
c. waves carrying sand away from a beach
d. a large rock splitting into pieces because of ice

Select the correct answer. given: 2libr + ba → babr2 + 2li in this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced? a. 1.18 mol b. 2.37 mol c. 4.73 mol d. 16.4 mol e. 32.9 mol

The fact that the total amount of energy in a system remains constant is a(n)

Match the term to its description match term definition chemical energy a) internal energy caused by vibrations of atoms and molecules electrical energy b) electromagnetic energy that travels in waves radiant energy c) the movement of an electrical charge thermal energy d) potential energy stored in the bonds between atoms