A chemical reaction imply minimum two reactants (chemical compounds), to obtain the final products.
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The reactants must be balanced correctly with reactants.
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That the number of atoms on the left side of the equation must be the same number of atoms that are on the right side of the equation.
No, NaCl H2O is not a chemical equation. An equation must have an equal sign. And even if you put an equal sign into those terms, it is not true that NaCl = H2O, so that would be a false equation, not a complete and balanced equation. You are not even close to having that.
The product must be oxidized, i.e, Oxygen must be on the reactant side. Also, the reactant will form its oxide and also liberate heat energy. In case of hydrocarbons, Carbon Dioxide, water and heat energy will be liberated and it is a must when writing the chemical equation.
A chemical equation must respect the law of mass conservation.
We need to know the reactants and products with their chemical formulas.
The reactants must be balanced correctly with reactants.
Yes. This is due to the law of conservation of mass/matter.
The chemical formula for it is PbI2, but to have an equation there must be another reactant or specified phase.
To correctly determine the balanced chemical equation, one must make sure that the products are appropriately relating to the reactants and make sure that the equation is balanced with the lowest coefficients.
You must have the same number and kinds of atoms on both sides of a chemical equation because of the law of conservation of matter, which states that matter is neither created nor destroyed during a chemical reaction.
Due to the law of conservation of mass and matter, all particles must have an equal number on both sides of a chemical equation. An equal number of atoms of each element involved must be on each side of the equation.
To correctly determine the balanced chemical equation, one must make sure that the products are appropriately relating to the reactants and make sure that the equation is balanced with the lowest coefficients. That should help.
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The number of atoms for reactants and products must be equal.
That the number of atoms on the left side of the equation must be the same number of atoms that are on the right side of the equation.