0.0615772713556 this is how many moles are in 4.55 grams of lithium carbonate.
It is a physical change. It is a physical change because when you boil water, all you are doing is changing it from a liquid to a gaseous state. When you change the phase of something, it is a physical change, not a chemical one.
Tsunamis, landslides, and rarely, a dry thunderstorms.
C5H10O5 would weight a total of 2.312 kilograms.
Answer:
A. Energy is necessary for bond formation.
C. Breaking bonds takes energy.
D. When bonds are formed, energy is released.
Energy is always required for bond formation because when a chemical reaction occurs, either molecular bonds are broken or other bonds are formed to make different molecules. Energy is released during bond formation and is an exothermic process because bond formation represents a stable configuration and the energy lost is released as heat energy that makes it more stable. Breaking bonds takes energy and is an endothermic reaction because energy is absorbed to break bonds.
Hope that helps. x