Answer:
Explanation:
Balance Chemical Equation:
A balanced chemical equation is that in which the number of the reactant atoms equal to the number of the product atom.
For example if the oxygen at the reactant side is 4, the number of oxygen must be 4 on the product side.
Solution
1. Au₂S₃ + H₂ --------> Au + H₂S
Balance Chemical Equation
1 Au₂S₃ + 3 H₂ --------> 2 Au + 3 H₂S
2. FeS + O₂ ---------> Fe₂O₃ + SO₂
Balance Chemical Equation
4FeS + 7O₂ ---------> 2Fe₂O₃ + 4SO₂
3. NH₃ + O₂ ---------> NO + H₂O
Balance Chemical Equation
4 NH₃ + 5 O₂ ---------> 4 NO + 6 H₂O
4. BaO + H₂O --------> Ba(OH)₂
Balance Chemical Equation
1 BaO + 1 H₂O --------> 1 Ba(OH)₂
Now by balancing all the atoms in equation are equal in reactant and product
Details also in attachment.
The dots in the Lewis structure represents the valence electron of the atom/molecule. The valence electrons surrounds the atom/molecule. The rest all bonds are represented by line be it single, double or triple bond.
Sodium sulfide has 3 atoms
Yes A is the correct answer hope this helped
Matter made up of gaseous would exert highest movement, due to high randomness; and solid will be least in that due to low randomness