If 6.75 moles of carbon is used, how many moles of oxygen gas (O2) is used?​

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.