Answer:
in disodium phosphate = 4 oxygen atoms
in phosphoric acid = 1 oxygen atom
Endo is more in reactants and exo is more in products because in exothermic reactions heat is released
Answer: Some atoms of the same elements that have different atomic masses are called isotopes
Explanation:
so the atoms are the same element but different in mass. Since the isotopes have the same number of protons and electrons the isotopes have much the same chemical behavior. Since the isotopes have different numbers of neutrons the nuclear behavior differs.
Answer:
The answer to your question is: Nitrogen
Explanation:
Organic molecules that are part of living organisms are composed by
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus and Sulphur.
The elements available in more quantity are Carbon, Hydrogen and Oxygen.
Nitrogen is present in proteins and nucleic acids.
equal to its atomic number
