Some Friday points :) - Whats your favorite food and why

Describe the chemical reaction based on the chemical equation below. also, explain whether the equation is balanced.

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)