Which equation obeys the law of conservation of mass? H2 (g) + O2 (g) → H2O (g) H2 (g) + O2 (g) → H2O (g) + 4He (g) 2H2 (g) + O2 (g) → 2H2O (g) H2 (g) → H2O (g) H2 (g) + O2 (g) → 2H2O (g)

If the acetylene tank contains 37.0 mol of C2H2 and the oxygen tank contains 81.0 mol of O2, what is the limiting reactant for this reaction?

What is the best reason for the difference in properties of LiCL and C6H14O

What is the percentage composition of each element in ammonia, NH3?

How do animal cells obtain energy

Calculate the amount of energy required to melt 500 g of ice at 0oc. (δhfus=5.96 kj/mole; δhfus is the energy required to melt ice at a constant 0oc; note the units!)

1) What is the mass of 5.24 moles of Fe504-7H2O?

The name given to the change of state from gas to liquid is

How many molecules of carbon dioxide, CO2, are present in 388.1 grams?

Radioactive elements will continue to decay until A. They have a stable nucleus B. They have a full octet of electrons C. They have a neutral electrical charge D. They have the same number of electron and protons

Which one of the following elements is stable?