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
laiz [17]
3 years ago
10

Oxidation number of Al(OH)4

Chemistry
1 answer:
Kobotan [32]3 years ago
8 0

Explanation:

The sum of all oxidation numbers in a neutral compound is zero. The sum of all oxidation numbers in a polyatomic (many-atom) ion is equal to the charge on the ion. The oxidation number of oxygen in a compound is usually –2. The oxidation state of hydrogen in a compound is usually +1.

The oxidation state of Al in Al(OH)

4

−

x+4(+1−2)=−1

∴x=+3

The oxidation state of Mn in MnO

2

y+2(−2)=0

∴y=+4

thank u

You might be interested in
As you travel from a solid to a gas, energy is being absorbed or given off?
Wittaler [7]
Sublimation is solid to a gas, during the process of sublimation energy is absorbed.
5 0
3 years ago
How does the electron configuration of elements within the same group compare? (A.) They all have their valence electrons in the
lesya [120]

Answer:

B.They all have their valence electrons in the same type of subshell

Explanation:

  • The electron configurations of elements in the same group (column) of the periodic table have them in the same type of subshell.
  • But the subshells may be of different shells. Thus , the energies of them need not be the same.
  • For example , The Alkalai Metals are found in the first column of the periodic table Group IA. This set of elements all have valence electrons in only the 's' orbital and because they are in the first column they all have s^{1} configuration. i.e,
  1. H 1s^1
  2. Li 1s^2 2s^1
  3. Na 1s^2 2s^2 2p^6 3s^1
  4. K 1s^2 2s^2 2p^6 3s^2 3p^64s^1
5 0
3 years ago
Please help thank you
Fynjy0 [20]

Answer:

D

Explanation:

8 0
3 years ago
The main product of the photosynthesis reaction is
Paladinen [302]

Answer: Sugar

Explanation: Because after photosynthesis (Carbon dioxide, water, and sunlight) react, they make two products. Glucose (A sugar) and Oxygen.

4 0
3 years ago
Which of the following would not be an isotope of carbon-12? A. Carbon-14 B. Carbon-13 C. Boron-12 D. Carbon-11
Oliga [24]
C because it isn't carbon
6 0
2 years ago
Other questions:
  • A solution with higher pH levels is more
    8·2 answers
  • Ethanol (C2H5OH) melts a - 144 oC and boils at 78 °C. The enthalpy of fusion of ethanol is 5.02 kj/mol, and its enthalpy of vapo
    13·1 answer
  • Which statement correctly compares the motion of atoms in liquid mercury and solid copper? Copper atoms in copper move while sta
    10·2 answers
  • What is the building block of matter :(?
    14·1 answer
  • What do astronomers use to calculate the age of the universe? Check all that apply. dark energy the age of rocks on Earth the ag
    14·2 answers
  • Predict whether aqueous solutions of the following substances are acidic, basic, or neutral:
    13·1 answer
  • Which of the following processes does our Sun and other stars in our galaxy use to create energy?
    5·1 answer
  • What is the complete ionic equation for the reaction between Na2SO4 and
    10·1 answer
  • A+gas+at+250k+and+15atm+has+a+molar+volume+12%+less+than+the+perfect+gas+law+character. +calculate+the+compressibility+factor
    13·1 answer
  • What is the answer for this question?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!