Which equation represents a chemical equilibrium?

1) N2 (l) N2 (g)

2) 2NO2 (g) N2O4 (g)

3) CO2 (s) CO2 (g)

4) NH3 (l) <--NH3 (g)

The enthalpy of fusion of methanol (CH3OH) is 3.16 kJ/mol. How much heat would be absorbed or released upon freezing 25.6 grams of methanol? 1. 2.52 kJ absorbed 2. 3.95 kJ absorbed 3. 0.253 kJ absorbed 4. 2.52 kJ released 5. 3.95 kJ released

How many moles of CH4 are in 148.6 g? Round your answer to two decimal places.

Given 10.8 grams of substance Y, if the substance absorbs 231 kilojoules of energy and the specific heat of the substance is 6.55 J/g·°C, what is the change in temperature?

Type of relationship between hypnotist and a perticipant

What is the mole ratio of N2 + 3H2 Right arrow. 2NH3

How does one recognize a redox reaction? A. By changes in the oxidation states B. By atoms rearranging in compounds u C. By the presence of ions in solution u D. By the presence of oxygen atoms 0 SU

A compound consists of 65.45% C, 5.492% H, and 29.06% O on a mass basis and has a molar mass of 110 g/mol. Determine the molecular formula of the compound.

What is thermal energy? a: the average overall volume of a system b: the total number of molecules in a system c: the kinetic energy of particles in a system d: the measure of temperature in a system

Oxygen at 150 k and 41.64 atm has a tabulated specific volume of 4.684 cm3/g and a specific internal energy of 1706 j/mol. calculate the specific enthalpy of o2 in this state.

How many valence electrons does a neutral lanthanide atom have?