Consider the reaction when aqueous solutions of magnesium sulfate and lead(II) nitrate are combined. The net ionic equation for this reaction is: B. Write a net ionic equation for the reaction that occurs when aqueous solutions of hypochlorous acid and barium hydroxide are combined. C. Write a net ionic equation for the reaction that occurs when nickel(II) carbonate and excess hydrochloric acid (aq) are combined.
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.
A. Consider the reaction when aqueous solutions of magnesium sulfate and lead(II) nitrate are combined. The net ionic equation for this reaction is:
B. Write a net ionic equation for the reaction that occurs when aqueous solutions of hypochlorous acid and barium hydroxide are combined.
C. Write a net ionic equation for the reaction that occurs when nickel(II) carbonate and excess hydrochloric acid (aq) are combined.
D. How many grams of manganese(II) bromide, MnBr2, must be dissolved to prepare 200. mL of a 0.221 M aqueous solution of the salt?
E. In the laboratory you dissolve 12.6 g of potassium sulfide in a volumetric flask and add water to a total volume of 500. mL.\
What is the molarity of the solution?
What is the concentration of the potassium cation?
What is the concentration of the sulfide anion?
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