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3 years ago

Is N2F5 ionic or covalent

Chemistry

1 answer:

Ulleksa [173]3 years ago

7 0

Answer:

it's a covalent compound

Explanation:

Two non metals are bonded to together

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The independent variable is the variable that you measure. True or False?

Leokris [45]

Answer:

Maybe false

Explanation:

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3 years ago

What is the formula for calculating pH?

anyanavicka [17]

A. Where the number for the concentration of H+ normally includes: times 10^#. For example, the conc. is given (or determined) as [1.00x10^-5]

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3 years ago

What quantum number of the hydrogen atom comes closest to giving a 24-nm-diameter electron orbit?

Paraphin [41]

n = 15. A Bohr orbit with n = 15 comes closest to having a 24 nm diameter .

The formula for the radius r of the nth orbital of a hydrogen atom is

r = n^2·a

where

a = the Bohr radius = 0.0529 nm

We can solve this equation to get

n = √ (r/a)

If d = 24 nm, r = 12 nm.

∴ n = √(12 nm/0.0529 nm) = √227 = 15.1

n must be an integer, so n = 15.

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3 years ago

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3 years ago

1. write the complete chemical symbol for the ion with 14 protons 15 neutrons and 18 electrons

motikmotik

Answer:

1. $Si^{-4}$

2. $Co^{+2}$

Explanation:

An ion is formed when an atom that is said to be neutral gains or losses electrons.

It is thought that a negative ion (anion) is produced as it gains electrons and a positive ion (cation) is formed when it loses an electron.

Atomic number is the total number of protons and electrons in a neutral atom.

From the information

Protons = 14

electron = 18

Net Charge = no of proton - no of electron

= 14 - 18 = -4

Mass number = 14 + 15 = 29

Thus, the chemical symbol = $Si^{-4}$

For ion with 27 proton, 32 neutrons and 25 electrons

Net charge = 27 - 25 = +2

Mass number = 27 + 32 = 59

Thus, the chemical symbol = $Co^{+2}$

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3 years ago