Answer:
3 KOH + H3PO4 ----> K3PO4 + 3H2O
Explanation:
Ensure the number of atoms on both sides are the same.
Left: 3K, 7O, 6H, 1P
Right: 3K, 7O, 6H, 1P
Hence, the equation is now balanced.
Mass number is the mass number of that particular Element found in the periodic table and the atomic number is the atomic no. Again found in the periodic table
1 - a, 2-b, 3-d, 4 - e
<u>Explanation:</u>
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- Separated by 6M HCl
Silver and aluminum ions can be separated using the acid, 6M HCl.
- Separated by H₂S
Copper and Calcium ions can be separated by the reagent hydrogen sulfide, H₂S.
- Separated by (NH₄)₂HPO₄ in NH₃
Magnesium and Potassium ions can be separated by the reagent Ammonium hydrogen phosphate in ammonia.
- cannot be separated
Nickel and Cobalt ion cannot be separated by the reagents given at all.
Answer:
3
Explanation:
3 magnesium and 2 nitrogen
Answer: option C. the number of electrons in the atom.
Given that the charge of a proton is the same that the charge of an electron, to be neutral the number of protons has to be the same than the number of electrons.