answers to test a 11 chemical reactions
f bubbles). Expected Results Positive Reaction: Effervescence occurs due to the release of carbon dioxide gas (CO₂). Chemical Equation: CaCO₃ (s) + 2HCl (aq) → CaCl₂ (aq) + H₂O (l) + CO₂ (g) Confirmation Bubble the gas through limewater (calcium hydroxide solution). If limewater turns milk