Answer:
Another simple example of an exothermic reaction is combustion, such as lighting a candle. An initial input of energy causes oxygen and wax react to produce carbon dioxide, water, and heat.
Answer:
amino acids
Explanation:
Proteins are polymers made from different monomers, called amino acids.
Hope this helps.
Honestly idk if this is correct but. The noble-gas notation for lead (Pb) would be [Xe]6s^2 4f^14 5d^10 6p^2. The standard electron configuration of lead is 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^10 6p^2 simplifying will lead to the part having the same configuration as xenon to be written as [Xe].
Water being boiled, because for a chemical change to occur there needs to be at least one new substance formed.