Given these reactions,

X (s) + 1/2 O2 (g) - -> XO (s)

H=-639.7

XCO3 (s) - -> XO (s) + CO2 (g)

H=+349.7

What is H (rxn) for this reaction?

X (s) + 1/2 O2 (g) + CO2 (g) - -> XCO3 (s)

What type of reaction is 2 C6H6 (l) + 15 O2 (g) → 12 CO2 (g) + 6 H2O (l)

What needs to occur to an atom of chlorine for it to turn into an ion with a negative 1 charge?

What is the mass of 6.14x10^25 atoms of gold

Consider the reaction: 2 SO2 (g) + O2 (g) 2 SO3. If, at equilibrium at a certain temperature, [SO2] = 1.50 M, [O2] = 0.120 M, and [SO3] = 1.25 M, what is the value of the equilibrium constant? none of the above 8.68 6.94 0.14 5.79

Why does sugar mix more in hot water than in cold water?

Give two examples of chemical energy being transformed into electrical energy

Name the following compounds. NH4OH

How many minutes will be required to deposit 1.00 g of chromium metal from an aqueous?

Does a gas discharge tube filled with boron emit the same wavelength

What is HNO3 it's formula