Oxygen can be obtained from water using electrolysis process as follows:
2 H2O .............> 2H2 + O2
It is given that:
molar mass of water = 10.01 grams and molar mass of O2 = 32 grams
From the balanced chemical equation, we can conclude that:
2 moles of water produce 1 mole of oxygen
2 x 18.01 = 36.02 grams of water produce 32 grams of oxygen.
To calculate how many grams of water must react to produce 50 grams of oxygen, we can use cross multiplication as follows:
mass of required water = 56.28125 grams
To convert from moles to grams you divide by the molar mass of the element. To convert from grams to moles you X by the molar mass element
When the football is on its way up, Kinetic energy is being transformed into Gravitational Potential energy.
Answer:
heat flows from the object that has more thermal more energy to the object with less thermal energy
