How do you balance

C2H2 + O2 - > CO2 + H2O?

Is it C2H2 + 5/2 O2 - > 2CO2 + H2O

or 2C2H2 + 5O2 - > 4CO2 + 2H2O?

Neon is an example of a (n) : A. Alkali Metal B. Noble Gas C. Halogen D. Rare Earth Metal

Select whether there is no work done by the system, work done by the system or work done by the surroundings for each system described below: A. H2O (l) / longrightarrow⟶ H2O (g) ΔH = 44.0 kJ/mol B.

Propane (C3 H8 (g), Hf = - 103.8 kJ/mol) reacts with oxygen to produce carbon dioxide (CO2, Hf = - 393.5 kJ/mol) and water (H2 O, Hf = - 241.82 kJ/mol) according to the equation below. What is the enthalpy of combustion (per mole) of C3 H8 (g) ? Use.

True or False a saturated aqueous solution has more solute than the solution can hold or dissolve this some of the solute can be seen lying on the bottom of the container

water's molar mass is 18.01 g/mol. The molar mass of glycerol is 92.09 g/mol. At 25 celsius, glycerol is more viscous than water. which substance has the stronger intermolecular attraction

Explain the iodine clock reaction.

1 75 ml of lemon juice are added to 50 ml of water. What is the percent by vo of the solute?

How many moles of tungsten atoms are in 4.8 x 1025 atoms of tungsten?

At what speeds do you criuse down the track of a roller coaster

A sample of hydrogen gas is mixed with water vapor. The mixture has a total pressure of 755 torr and the water vapor has a partial pressure of 24 torr. What amount (in moles) of hydrogen gas is contained in 1.55 L of this mixture at 298 K?