Answer:
Explanation:
Basically, Kinetic Molecular Theory says that gas particles are in constant motion and that they show perfectly elastic collisions.
An elastic collision is a collision in which there is no net loss in kinetic energy in the system as a result of the collision.
So the kinetic molecular theory says that gas particles stay moving constantly and don't lose energy when they run into each other.
Hope this helps!
Answer:
Mass number of carbon is 12.
Explanation:
Carbon atom is defined as 6 atoms in a nucleus, and the mass number is the total number of protons and neutrons in the nucleus of an atom.
Before any neutrons are added to the carbon atom, its mass number is 6;<em> after 6 neutrons are added, the total number of protons and neutrons is now 12—the mass number becomes 12.</em>
Answer:
The maximun distance is 
Explanation:
From the question we are told that
The wavelength are 
The distance of seperation of the two slit is 
The distance from the screen is 
Generally the distance of the bright fringe to the center of the screen is mathematically represented as
Where m is the order of the fringe
For the first wavelength we have
For the second wavelength we have
----(2)
From the question we are told that the two sides coincides with one another so
Hence for this equation to be solved
and 
Substituting this into the equation
Hence
Answer:
Hypothesis:
The amount of limestone that dissolves in the acid is directly proportional to the concentration of acid used.
Explanation:
Acids dissolve limestone according to the following general equation;
2HX(aq) + CaCO3(s) -------> CaX2(aq) + H2O (l) + CO2(g). Where HX represents any acid at all.
This dissolution process is a chemical reaction. It was experimentally observed that the amount of limestone that dissolved in acid depends on the concentration of acid. Various concentrations of acid were then prepared and a particular mass of limestone was dissolved in each concentration of acid. The amount of limestone dissolved in each case was carefully noted.
It was observed that as the concentration of acid increased, the amount of limestone dissolved increased also and vice versa, hence the hypothesis proposed above.
