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jasenka [17]
3 years ago
12

LIST THE FOLLOWING MOLECULES AS EITHER POLAR, IONIC OR NONPOLAR.

Chemistry
1 answer:
mina [271]3 years ago
4 0

Answer:

HCl 1.Polar 2.soluble highly

O2 1.non-polar 2.highly soluble

CaCl2 1.Ionic 2.insoluble

N2 1.non polar 2.soluble highly

C2h6 1.non polar 2.insoluble

KNO3 1.ionic 2.Soluble

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Use the information below to explain why the atomic radius decreases down a group.
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Answer:

Detail is given below

Explanation:

Atomic radii trend along group:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.

In A we can see that there is one positive charge and force of attraction is 2.30×10⁻⁸ N and distance is 0.10 nm

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3 0
3 years ago
One mole of silver has a mass of 107.9 grams. Approximately how many atoms of silver are present in one mole of silver?
irga5000 [103]

Answer:

The number of atoms in 1 mole silver is also 6.022 *10^23 atoms.

Option C is correct.

Explanation:

Step 1: Data given

Mass of 1 mole silver = 107.9 grams

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To calculate the number of atoms in 1 mole, we multiply the number of Avogadro by the number of moles

Number of atoms = 1 mol * 6.022 *10^23 atoms/ mol

Number of atoms = 6.022 * 10^23 atoms

Since the number of Avogadro says there are 6.022 * 10^23 atoms per 1 mole. The number of atoms in 1 mole silver is also 6.022 *10^23 atoms.

Option C is correct.

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