The number of atoms : = 6.02.10²³
<h3>Further explanation</h3>
Given
mass = 20.17 g of Neon
Required
The number of atoms
Solution
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
mol Neon :
= mass : Ar Neon
= 20.17 : 20,1797 g/mol
= 0.999 ≈ 1
The number of atoms :
= 1 x 6.02.10²³
= 6.02.10²³
Answer:
When you add heat to a substance, the heat energy gets transferred to kinetic energy, and the molecules began to move a greater distance at a greater speed. When you remove heat, the opposite happens.
I think the correct answer from the list of choices above is option B. <span>The chemical combination of two or more different atoms in fixed amounts is called a compound. There are two type of compounds namely the ionic and covalent compounds.</span>
