Answer is: c. CuSO4 + 2NaOH yields Cu(OH)2 + Na2SO4.
Copper atom has oxidation number +2, sulfur atom oxidation number +6, oxygen has oxidation number-2, sodium has oxidation number +1 and hydrogen has +1 on both side of chemical reaction, so elements did not change their oxidation numbers.
Answer:
eight
Explanation:
That means there are 12 electrons in a magnesium atom
hope this helps
Do it urself ;) jdhdhdhdhdhhdhdhdhdhdhdhdhdhgdhd
Potassium ......................
