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NSWChemistryQuick questions
Module 6: Acid/Base Reactions
Quick questions on Reactions of acids with metals, carbonates and bases explained: HSC Chemistry Module 6
6short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is activity series?Show answer
Only metals more reactive than hydrogen displace it from dilute acids. K, Na, Ca, Mg, Al, Zn, Fe, Pb (slowly) react; Cu, Ag, Au do not. Lead reacts slowly because of an insoluble lead salt coating.
What are observations?Show answer
Bubbling (hydrogen gas), the metal disappears, the solution may warm.
What is gas test?Show answer
Hydrogen gives a "pop" with a lit splint.
What is q1?Show answer
Write balanced molecular and net ionic equations for the reaction between sulfuric acid and sodium hydrogen carbonate. [3 marks]
What is q2?Show answer
A 2.50 g sample of pure calcium carbonate is added to excess 1.00 mol L HCl. Calculate the volume of produced at 25 degrees C and 100 kPa (molar volume 24.79 L mol). [3 marks]
What is q3?Show answer
Predict the products and write the net ionic equation for each of: (a) magnesium ribbon plus dilute nitric acid; (b) zinc oxide plus hydrochloric acid; (c) aqueous ammonia plus hydrochloric acid. [2+2+2 marks]
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