Answer:
C3H8 + 5O2 === 3CO2 + 4H2O
Explanation:
The balancing of a chemical equation is simply based on Law of conservation of mass which states that mass can neither be created nor be destroyed but it only changes from one form to another during a chemical reaction. According to this law, the tottal number of atoms of each element on both sides of the equation must be same. By following this rule, we just have to make sure that the if there are three number of Carbon atoms on the left hand side ( Reactant side) then there must be same number of Carbon atoms on the right hand side which is called product side. The number of Hydrogen( H )atoms, Oxygen (O) atoms are balanced on the same principle.
Answer: a) 0.579 atm
b) 0.585 bar
c) 58662 Pa
Explanation:
Pressure of the gas is defined as the force exerted by the particles on the walls of the container. It is expressed in various terms like 'mmHg', 'atm', 'kiloPascals' etc..
All these units of pressure are inter convertible.
We are given:
Pressure of the gas = 440 mmHg
a) Converting this unit of pressure into 'atm' by using conversion factor:
b) Converting this unit of pressure into 'bars' by using conversion factor:
c) Converting this unit of pressure into 'Pascal' by using conversion factor:
Answer: for an object or gas or liquid to float in another there must be a difference in density
Explanation:
Helium has a density of 0.18 kg/m³ and air has a density of 1.29 kg/m^³. If a balloon is filled with helium it will float in air due to density differences
Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces
Everything in the world gets its energy from the sun so, the cow gets its energy from the grass wich gets energy from the soil wich gets energy from the sun Ect.