Spectator ions are zero(0) due to change of chemical reaction and absence of ions above the compound.
Given the balanced chemical equation for combustion of propane:
Moles of propane 
=3.6 mol
Propane is the limiting reactant as the other reactant oxygen is said to be present in excess.
Amount of products formed would depend on the moles of limiting reactant.
Mole ratio of water to propane as per the balanced chemical equation
=
Calculating the moles of water produced from 3.6 mol propane:
= 14.4mol
Theoretical yield of water = 14.4 mol
Actual yield = 12 mol
Percent yield = 
= 
Answer:
See explanation
Explanation:
When a substance is heated, its average kinetic energy increases as the molecules move faster owing to the supply of energy. The solvent molecules are able to collide more frequently with the solute molecules and dislodge them so that the solute can dissolve in the solvent.
However, when a gaseous solute is dissolved in a liquid; as the temperature is increased and solvent molecules are able to collide more frequently with the solute molecules and dislodge them, gas molecules dissolved in the liquid are more likely to escape to the gas phase and not return due to the increase in their kinetic energy.
Hence, solubility of gas solutes in water decreases as temperature increases.
These are isotopes of that element. The nucleus is different because the number of neutrons differ and aren't the same. The number of protons are the same though.<span />
