Constants: R= 0.0821 atmL/molk, 1 atm = 760 mmHg, 1 mol gas = 22.4L (STP) Hydrogen was prepared in 1776 by a method given by the following equation. What volume (L) of H2 at 745 mmHg and 20°C can be prepared from 4.8 g of iron? 4 H2O(g) + 3 Fels) -->Fe;Oa[s) + 4 H2(g)

What is the electron configuration for the cadmium ion?  (Using noble gas abbreviation)

what is compresion

Consider the following equilibrium reaction and its value of ΔH°. 2 SO2 (g)   +   O2 (g)   ⇋⇋   2 SO3(g)       ΔH° = -198 kJ Predict whether the reaction will shift towards the products or reactants with a decrease in the temperature. Select one: a. Shift towards the reactants. b. Shift towards the products. c. The temperature change would have no effect.