3. Which of these is the active ingredient in vinegar? A. calcium hydroxide B. sulfuric acid C. phosphoric acid D. ammonium phosphate E. acetic acid

Hydrochloric acid (HCl) is made up of a hydrogen atom and a chlorine atom. Why is it considered an acid? A. it is very irritating to the skin and will cause burns B. it will readily dissolve in water C. it has an ionic bond and will break apart into charged ions D. it is a source of hydrogen ions E. it is a source of chlorine ions

A. What is a diprotic acid? Give an example. B. Write an equation representing the reaction that would occur if only one mole of NaOH is reacted with one mole of H₂SO3. C. Write an equation representing the reaction that would occur if one mole of the product (the product containing S) from the reaction above is reacted with one mole of NaOH. D. Write a balanced equation for the complete neutralization of H2SO3 with NaOH. E. What is the relationship between the equation you wrote in "D" and the equations in "B" and "C"? F. Rewrite the equations above as net ionic equations. Does the same relationship still exist? G. H₂SO3 is a diprotic acid. Using the graph below, sketch an approximate curve of pH vs. vol. of NaOH added for what you expect to observe for the titration of H₂SO3 with the strong base NaOH. Discuss the shape of your curve with your instructor. 14 pH 405.90 29108A1 od 0- Deo volume of NaOH added odabos 94 Be ob son od adf tiba

1. Write balanced net ionic equations to explain the observations in the options assigned by your instructor. (All reactions are oxidation-reduction.) See the protocol on page 192. a) Option E Cues b) Option F

A constant amount of metal (Mg) about 0.080 g is reacted with two acids (HCl and H2SO4) to produce hydrogen gas  a. write out a correctly formatted hypothesis that describes how the amount of hydrogen gas produced will be affected by the concentration of acid.  b. write out a correctly formatted hypothesis that describes how the amount of hydrogen gas produced will be affected by the type of acid (HCl or H2SO4) reacted with the Mg metal

5.00 mL of 1.00 M HCl is added to a flask containing antacid powder dissolved in water. The solution is then titrated with 0.20 M NaOH, and the titre volume recorded is 17.85 mL.  How many mol of HCl was neutralised by the antacid tablet?     Select one: a. 0.0014 mol HCl b. 0.80 mol HCl c. 0.0036 mol HCl

Get two medium test tubes. Into one, place about 2 mL of a solution of hydrochloric acid. Into the other add a small amount of solid sodium carbonate. Note the appearances of the contents in the two test tubes and then mix them together noting any changes that have taken place. what changes take place? whats the balanced equation? whats the ionic? whats the net ionic

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Based on the solubility rules, which one of these compounds is insoluble in water? Select one: O a. Na, SO, O b. CACO3 O c. NaNO3 d. NaOH

List all major entities present when each of the following substances is added to water. a. francium phosphate b. barium hydroxide c. ethanol d. iodine e. sodium nitride