no it's 0.
Na = +1
O = -2
Na2O = +1(2) + (-2) = 0
NiCl2 + 2Na --> 2NaCl + Ni
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No because Oxygen is an element and it only contains atoms of Oxygen and nothing else, no Hydrogen at all. A compound of Hydrogen must contain Hydrogen plus something else. Water contains Hydrogen and Oxygen (H2O) so that would be a compound of Hydrogen and oxygen.
Salt is a compound because Sodium is a metal with a plus 1 charge, while chloride is a nonmetal with a minus 1 charge. A mixture would be a combination of different compounds or molecules, while a solution is a suspension of ions in water or some other solvent.
I'm pretty sure you have your formula wrong. Oxygen has a net charge of -2. So therefore, the equation must be written as 2Hg with a net charge of 2+ plus CO3 with a net charge of 2-. So, you do your math here, and the answer should be Hg3CO3
Na (sodium) has a valence of 1+ and oxygen (O) has a valence of 2-, so it will take 2 Na for each O. The compound formed (sodium oxide) has the formula Na2O.
Na2O + H2O ---------> 2NaOH
NiCl2 + 2Na --> 2NaCl + Ni
Yes, H2O + Na2O --> 2NaOH NaOH , or sodium hydroxide is a base.
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No, it is not.
0 in elemental form +1 in its compounds
The Arsenic in AsH3 typically has a plus one charge. Therefore the H must have a -1 charge to create the compound.
No, when two elements join chemically to form a compound the product is neutral.
4Na + O2 = 2Na2O The reactants are the sodium (Na) and the oxygen (O2) NB The product is Na2O
The ion for Potassium has a charge of 1+.The ion for Iodine has a charge of 1-.This means that in order to make the overall charge of a unit of a compound of Potassium and Iodine, there must be one atom of Potassium and one atom of Iodine.Therefore, when K+ and I- are bonded, they make the ionic compound of KI.
potassium positive bromine negative