Can someone help me to answer this correctly, please, and explain it. Please answer these 3 short questions, I don't have more money to buy more questions. These 3 questions are different.

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Write a net ionic equation for the overall reaction that occurs when aqueous solutions of potassium hydroxide and oxalic acid (H2C2O4) are combined. Assume excess base. Be sure to specify states such as (aq) or (s). Write a net ionic equation for the overall reaction that occurs when aqueous solutions of potassium hydroxide and oxalic acid (H2C2O4) are combined. Assume excess base. Be sure to specify states such as (aq) or (s). Write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide and hydrocyanic acid are combined. (Be sure to specify states such as (aq) or (s). If a box is not needed leave it blank. If no reaction occurs leave all boxes blank and click on "submit" ")