States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
What are the spectator ions for the reaction that occurs when solutions of barium chloride and sodium Sulfate are mixed?
Aqueous solution of Barium chloride and aqueous solution of sodium sulphate reacts to form precipitates of barium sulphate and aqueous solution of sodium chloride.
Steps to write a net ionic equation and complete ionic equation for a molecular reaction :
- Write and balance the molecular equation .
- split all the aqueous substances as their respective ions to write the complete ionic equation.
- Carry through any coefficients.
- Cancel out spectator ions to write the net ionic equation.
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