Bohr atomic model different from the plum-pudding model as the Plum pudding model did not encounter the concept of nucleus it simply says compares atom with a pudding in which electrons are spread around as rasins in a pudding while bohr explain atom that is having nucleus that serves as a centre of the atom , and there are electrons around nucleus that occupy certain energy levels.
They can probably form 3 of them
The volume fraction in gasses is equal to the mole fraction.
In a reaction mixture, the molar ratio of X : Y = 1:4
Fraction of X = 1/5
Fraction of Y = 4/5
So in the 5 L reaction mix,
1 L of X and 4 L of Y
The products contain 2 L of Z
This satisfies the equation completely so we check the enthalpy of this reaction:
-75 kilojoules
Answer:
counter clockwise
Explanation:
Dont all planets in our solar system rotate counterclockwise?