All nickel atoms would have the same number of protons or atomic number.
Answer:
Chemists investigate the properties of matter at the level of atoms and molecules. They measure proportions and reaction rates in order to understand unfamiliar substances and how they behave, or to create new compounds for use in a variety of practical applications.
Explanation:
Reactants Hydrogen: 5
Products Hydrogen: 5
Reactants Carbon: 3
Products Carbon: 3
Reactants Oxygen: 4
Products Oxygen: 5
Answer: A different group of scientists using different methods.
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