Which of the following is a replacement reaction? A )4Al(s) + 3O2(g) ↔ 2Al2O3(s)
B) 2C4H10(g) + 13O2(g) ↔ 8CO2(g) + 10H2O(g)
C) Mg(s) + 2HCl(aq) ↔ H2(g) +MgCl2(aq)
D) CaCO3(s) ↔ CaO(s) + CO2(g

Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10^-3 m and k for the dissociation is 1.86x10^-5. ch3cooh(aq)+h2o(> h3o^+(aq)+ch3coo^-(aq)

What is the molar mass of potassium nitrate, kno3

What is the most important factor in determining climates.