6. Chemical Quantities & Aqueous Reactions

Predict the products formed from the following gas evolution equation.

CaS (aq) + HNO₃ (aq) →

Predict the products formed from the following gas evolution equation.

NH₄Cl (aq) + NaOH (aq) →

Predict the products formed from the following gas evolution equation

K₂SO₃ (aq) + H₂SO₄ (aq) →

When a metal strip is placed in HCl(aq), a reaction occurs as indicated by the bubbles of gas formed on the surface of the metal. Which of the following could be the identities of the metal and the gas involved in this reaction?

a. Pt, H₂

b. Pt, O₂

c. Zn, H₂

d. Zn, O₂

e. Fe, Cl