1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
solmaris [256]
3 years ago
6

In the compound nh3, nitrogen has an oxidation number of 3+ and hydrogen has an oxidation number of ______________.

Chemistry
2 answers:
Digiron [165]3 years ago
4 0
In the compound nh3, nitrogen has an oxidation number of 3+ and hydrogen has an oxidation number of -1
The molecule NH3 have a neutral charge so the number of oxidation number of it's component must be equal to zero. The molecule NH composed of 1 nitrogen and 3 hydrogens. If the nitrogen oxidation number is 3+, then hydrogen would be:

1* N + 3*H=0
1*+3  +3*H=0
3H= -3
H= -1
Tju [1.3M]3 years ago
4 0

Explanation:

Since nitrogen is more electronegative than hydrogen therefore, it attracts the electron of hydrogen atom towards itself. Hence, the hydrogen atom acquires a negative charge in a molecule of ammonia (NH_{3}).

So, let the oxidation number of hydrogen in NH_{3} is x.

Therefore, calculate the oxidation number of hydrogen as follows.

Oxidation number of nitrogen + 3 \times oxidation number of hydrogen = charge on the molecule

                   3 + 3x = 0

                       x = \frac{-3}{3}

                          = -1

Thus, we can conclude that in the compound NH_{3}, nitrogen has an oxidation number of 3+ and hydrogen has an oxidation number of -1.

     

You might be interested in
In the reaction K2CrO4 (aq) + PbCl2 (aq) 2KCl (aq) + PbCrO4(s), how many grams of PbCrO4 will precipitate out from the reaction
tankabanditka [31]
The answer is 24 grams                       
6 0
3 years ago
Having done the experiment, explain briefly how the mass of zinc not equal the mass of lead gained (hint: the periodic table)
masya89 [10]

Answer:

Due to the difference in the relative atomic masses and therefore, the molecular masses of Zn and Pb, one mole of Zn is about 3.2 times lighter than one mole of Pb

Explanation:

From the periodic table, we have;

The atomic number of zinc, Zn = 30

The atomic mass of zinc, Zn = 65.38 amu

The molar mass of zinc, Zn = 65.38 g/mol

The atomic number of lead, Pb = 82

The atomic mass of lead, Pb = 207.2 amu

The molar mass of lead, Pb = 207.2 g/mol

Therefore, whereby equal number of moles of Zn is lost and Pb is gained, we have;

Mass of 1 mole of Zn = 65.38 grams

Therefore, 1 gram of Zn = 1/65.38 moles = 0.0153 moles

0.12 grams of Zn = 0.12×0.0153 = 0.00184 moles of Zn

Given that equal number of moles of Zn and Pb are involved in the reaction, the number of moles of Pb gained = 0.00184 moles

The mass of Pb gained = Number of moles of Pb gained × Molar mass of Pb

The mass of Pb gained = 0.00184 × 207.2 = 0.38 g ≈ 0.4 g.

Amount of Pb gained = 0.43 g ≈ 0.4 g

4 0
3 years ago
Complete each equation with a number that is true.<br>5 * _ =15
natali 33 [55]

The answer is 3. As 5 * 3 = 15.

Is there any other equations I may be able to help you with? :)

5 0
4 years ago
Read 2 more answers
What is the identity of the element, and how many neutrons does it have? An elements most stable ion forms an ionic compound wit
Pani-rosa [81]

Answer:

B. CA, 14

Explanation:

Atoms of elements contain small particles known as electrons, neutrons, and protons. The nucleus of an atom is made up of neutrons and protons which are at the center of the atom. Electrons on the other hand surrounds the nucleus. Electron has negative charge while proton has a positive charge. The number of neutrons is equivalent to the number of protons . In addition, the number of protons is equal to mass number minus the number of electrons.

For the compound XCl_{2}, it can be broken down into X^{2+} and 2Cl^{-}. Its ion has a mass of 34 and 18 electrons which means it has already lost 2 electrons.

Therefore:

For the given element, the number of electrons is 18+2 = 20 electrons.

The number of protons = 34 - 20 = 14.

And the number of neutrons is 14.

Only option B has the correct answer.

6 0
3 years ago
What’s the chemical formula for lithium carbonate
nordsb [41]

Answer:

<h3>Being a science geek the ans is <u><em>Li2CO3</em></u></h3>

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • How can you determine the number of protons in the nucleus of an atom of any of the elements listed in the table?
    6·1 answer
  • Why would 18 be wrong for the atomic mass of an atom with 6 neutrons, 6 electrons, 6 protons?
    12·1 answer
  • What is the percent composition of phosphoric acid H3PO4
    6·1 answer
  • Which processes of the water cycle involve the movement of water in the liquid state?
    12·1 answer
  • What type of substance is always made up of a single type if atom
    8·1 answer
  • What the difference of meaning between strong and weak Base. gave one example for each of them​
    11·1 answer
  • .What type of energy includes both kinetic and potential energy?
    11·2 answers
  • What is the hydroxide [OH-] concentration of a solution that has a pOH of 4.90? 14 14 1.26 x10-5 1.26 x10, -5 9.1 9.1 7.94 x 104
    9·1 answer
  • Predict the effect of an eightfold pressure increase on the equilibriunm composition of the reaction 3 Nalg) + H21g) =2 NaHlg)​
    7·2 answers
  • We can preserve natural resources by
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!