Carbon can react with oxygen to form carbon dioxide. Which of the following statements about this chemical change is true? ... Carbon and oxygen atoms are destroyed as new atoms are formed. Carbon and oxygen atoms have the same properties as molecules of carbon dioxide.
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Answer:
Explanation:
I think zero because 14x2=28 and u start off with 500
Enzymes are highly specific for the reaction they catalyze. Their structure allows them to highly specific as there are various enzyme theories that defines its selectivity.
One of them is Lock and Key model: In it a enzyme structure defines which substrate can fit into it enzyme is the lock and substrate is the key. So only a correctly size substrate can fit into the active site of enzyme.
Chadwick discovered the existence of neutrons which accounts for isotopy.
Isotopes exists because atoms of the same element may differ in the number of neutrons present in each one. This phenomenon is called isotopy.
Chadwick discovered the existence of isotopes by bombarding Beryllium with alpha particles obtained from Polonium decay.
The discovery of the existence of neutrons led us to the a better understanding of isotopes since isotopes differ only in the number of neutrons present.
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