Chemistry Quiz exam 2

Write a balanced equation for the reaction of molecular nitrogen (N₂) and oxygen (O₂) to form dinitrogen pentoxide.

Categorize the reaction Ca (s) + Br₂ (l) → CaBr₂ (s).

Balance the redox reaction in acid solution: Br₂ (l) + SO₂ (g) → Br⁻ (aq) + SO₄²⁻ (aq).

In the reaction: 2 Na (s) + Cl₂ (g) → 2 NaCl (s)

What is the charge on nitrogen in KNO₃?

What is the % Cl⁻ in a sample if 1.1324 g of the sample produces 1.0881 g of AgCl(s) when treated with excess Ag⁺ according to the balanced reaction: Ag⁺(aq) + Cl⁻(aq) → AgCl(s)?

What volume of a 0.3300-M sodium hydroxide would be required to titrate 15.00 mL of 0.1500 M oxalic acid? The balanced chemical equation is: H₂C₂O₄(aq) + 2 NaOH(aq) → Na₂C₂O₄(aq) + 2 H₂O(l).

What is the product, if any, when aqueous solutions of KI and Pb(NO₃)₂ are mixed?

What is the kinetic energy associated with the random motion of atoms and molecules?

How much heat is absorbed when 217 g of metal with a specific heat 0.451 J/g°C has its temperature increased from 24.5°C to 39.1°C?