draw the chemical structure of oxalic acid dihydrate, sodium hydroxide and sulphuric acid

Chapter #9, Question #5: The principal anion and cation of Lake Huron, one of the Great Lakes in North America, are, respectively, hydrogen carbonate and calcium.  The concentration of the former is approximately 1.05 mmol L-1.  Calculate the mass of solid calcium carbonate that would remain if 250 mL of Lake Huron water is evaporated to dryness.

What happens when a weak base such as NH3 is dissolved in water? Write a chemical equation to explain.

Calculate the pH and degree of hydrolysis in the 0.02 M solution of sodium acetate

Please write a balanced equation and indicate the state. HCl(aq) + H2O (l)

When the pH of a solution is changed from 3 to 2, how does the concentration of the hydronium ion change?

Write the balanced equation for the neutralization reaction between H₂PO4 and NaOH in an aqueous solution. Phases are optional. balanced equation: H₂PO4 + NaOH → Incorrect Na3PO4 + 3H₂O

write the balanced equation for the reaction of sodium hydroxide and propionic acid

Write an equation to show that hydroiodic acid , HI , behaves as an acid in water.

☐ ローロ Phosphoric acid (H3PO4) is a polyprotic acid. Write balanced chemical equations for the sequence of reactions that phosphoric acid can undergo when it's dissolved in water.