If gravity where much weaker, then the houses wouldnt need as much structural support, and then could be built much more taller as they wouldnt go through as much stress. and if gravity was stronger, buildings would need to be alot more structurally sound and wouldnt be able to maintain a tall structure as the force of gravity would be too much for them. hope i helped :3
Answer:
8 lithium atoms and 4 oxygen atoms
When propane is burned in air in a process known as combustion it produce carbon (IV) oxide and water
the word equation is as follows,
propane + oxygen--->carbon (IV) oxide + water
chemical equation is as follows
2C3H8 +7O2---> 3CO2 + 8 H2O
hence 2 moles of propane reacted with 7 moles of oxygen to give 3 moles of CO2 and 8 moles of H2o
