Apply unitary method,
A day = 24 × 60 minutes
So,
Please refer to the attachment above.
Hope this will help you.
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<h2>Answer:</h2>
The correct option is Pf = Pi
<h2>Explanation:</h2>
Momentum is the product of velocity and mass of an object. It is a physical quantity and the law of conservation of momentum says that for a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision. So simply it means that Pf = Pi.
Answer:
27.7 × 10²³ atoms
Explanation:
Given data:
Number of moles of Potassium = 4.6 mol
Number of atoms = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
For 4.6 moles of K:
One mole = 6.022 × 10²³ atoms
4.6 mol × 6.022 × 10²³ atoms= 27.7 × 10²³ atoms
Answer: the answer would be H,he,Li.
Explanation: I hope that helped!