2 years ago

Na-23 has 11 protons.How many neutrons does it have?

1 answer:

mash [69]2 years ago

7 0

this is how you find it:

23-11=12

the 12 is the amount of neutrons

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motikmotik

Conservation of mass. The mass that reacts must equal the mass of the products.

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Andre45 [30]

Answer : The oxidation state of nitrogen in $LiNO_3$ is, (+5)

Explanation :

Rules for the oxidation numbers :

The oxidation number of a free element is always be zero.
The oxidation number of a monatomic ion equal to the charge of the ion.
The oxidation number of Hydrogen (H) is +1.
The oxidation number of oxygen (O) in compounds is usually -2, but it is -1 in the peroxides.
The oxidation number of a Group 1 element in a compound is +1.
The oxidation number of a Group 2 element in a compound is +2.
The oxidation number of a Group 17 element in a binary compound is -1.
The sum of the oxidation numbers of all of the atoms in a neutral compound is zero.
The sum of the oxidation numbers in a polyatomic ion is equal to the charge of the ion.

The given compound is, $LiNO_3$

Let the oxidation state of 'N' be, 'x'

$(+1)+x+3(-2)=0\\\\x=+5$

Hence, the oxidation state of N is, (+5)

3 0

4 years ago

ddd [48]

Answer: 5

Explanation:

It just is

6 0

3 years ago

dmitriy555 [2]

Answer:

im pretty sure 2+

Explanation:

subtract the electrons from the protons

4 0

3 years ago