C. 2Fe2O3 would be the correct answer!
Answer:
The elements in group 13 and group 15 form a cation with a -3 charge each.
Answer:
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Explanation:
Answer: A) ionic salt
Explanation: Chlorine has a high electronegativity of 3.0. Copper like most metals has a low electronegativity, So the bonding is ionic making the compound an ionic salt.
Answer:
B - The energy of reactants is conserved.
D - the nuclei of atoms changes completely ( if that's the option)
