Domanda del libro di testo
Obtain a package of Alka-Seltzer, an antacid, from the local drug store:
Why does Alka-Seltzer foam and bubble when dissolved in water? Which ingredient is the antacid?
2376
views
7. Chemical Reactions
Gas Evolution Equations (Simplified)
Scelta multipla
Predict the products formed from the following gas evolution equation.
A
KCl, H2CO3
B
CO2, H2O
C
KCl, CO2, H2O
D
KCl, H2, CO32–
Guida verificata passo dopo passo1
Identify the reactants in the equation: Potassium bicarbonate (KHCO3) and hydrochloric acid (HCl).
Recognize that this is a typical acid-carbonate reaction, which generally produces a salt, water, and carbon dioxide gas.
Write the balanced chemical equation for the reaction: KHCO3(aq) + HCl(aq) → KCl(aq) + H2O(l) + CO2(g).
Determine the products: Potassium chloride (KCl), water (H2O), and carbon dioxide (CO2).
Verify the conservation of mass by ensuring that the number of each type of atom is the same on both sides of the equation.
Video correlati
Pratica correlata
