Predict the products of the reaction of lithium carbide with water:
Li₂C₂ (s) + 2 H₂O (l) → ?

Complete and balance the equation for each of the following reactions.

b. Ca(s) + H₂O(l) →

Which element will react most vigorously with water, and what is the reaction that occurs?

(a) Lithium; 2 Li(s) + 2 H₂O(l) → 2 Li⁺(aq) + 2 H^–(aq) + H₂O₂(aq)

(b) Potassium; 2 K(s) + 2 H₂O(l) → 2 K⁺(aq) + 2 OH^–(aq) + H₂(g)

(c) Magnesium; Mg(s) + 2 H₂O(l) → Mg²⁺(aq) + 2 OH^–(aq) + H₂(g)

(d) Barium; Ba(s) + 2 H₂O(l) → Ba²⁺(aq) + 2 H^–(aq) + H₂O₂(aq)

Alkaline earth metals react with certain substances to produce hydrogen gas. Which of the following will result in hydrogen gas formation? Provide a balanced reaction.

a) Beryllium (Be) and O₂

b) Barium (Ba) and CO₂

c) Calcium (Ca) and H₂O

d) Strontium (Sr) and O₂

Provide the products from the reaction between strontium and aqueous chlorine.

Write chemical equations for the reaction of potassium with the following substances, making sure that the numbers and kinds of atoms are the same on both sides of the equations. If no reaction occurs, write N.R.

(a) H2O