If Na does react with HNO3 (the question does not state if it's aqueous or anhydrous HNO3), this will not be the correct reaction. What happens when most metals react with an acid? Hint: Something is evolved.carla said:State "does not occur" if the reaction will not take place.
please let me know if i am right
a) Na + HNO3 ---> NaOH + NO2
This question too is ambiguous. Elemental Nickel has zero oxidation state (by definition, this is true for all elements), so one must only assume this is Ni2+ in aqueous solution. In that case, your equation clearly does not balance charge, nor does it balance the number of Cu atoms. But more importantly, you need to determine if the reaction will occur at all.b) Ni(II) + Cu2O --> Cu + NiO
This is correct, but do you know why?c) Zn + Mg(NO3)2 --> does not occur
Actually, a metal will react with a salt solution in many cases. For instance, what happens if you drop some Zinc pellets in a solution of CUSO4 (this reaction is the basis of the Galvanic cell)?carla said:reaction number 3 will not occur because magnesium nitrate is a salt and zinc is a metal and a metal and a salt cannot react
A balanced reaction is a chemical equation in which the number of atoms of each element is equal on both the reactant and product sides. This is achieved by adjusting the coefficients (numbers in front of each molecule) to ensure the law of conservation of mass is followed.
A reaction will occur if the reactants have enough energy to overcome the activation energy barrier and form products with lower energy. This can be determined by looking at the Gibbs free energy (∆G) of the reaction, with negative ∆G indicating a spontaneous reaction.
The purpose of balancing a reaction is to accurately represent the chemical changes that occur during a reaction. It ensures that the same number of atoms of each element are present on both sides of the equation, allowing for accurate calculations and predictions.
The steps for balancing a reaction are:1. Write out the unbalanced equation.2. Count the number of atoms of each element on each side.3. Determine which element is not balanced.4. Add coefficients to balance the unbalanced element.5. Check that all elements are now balanced.6. If not, continue adding coefficients and checking until all elements are balanced.
No, a reaction cannot be balanced with fractions. All coefficients must be whole numbers in order to accurately represent the ratio of reactants and products in the reaction. If fractions are present, they can be multiplied by a common factor to convert them into whole numbers.