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
finlep [7]
3 years ago
13

Balance the following redox reaction by ion electron method.Cr2O72- + H2S → Cr3+ + S (in basic medium)

Chemistry
1 answer:
goldenfox [79]3 years ago
7 0

Answer:

gdfktfnfgh trhdfih tdjgd

You might be interested in
Help please I need the answer
nexus9112 [7]

Answer:

                    Polyatomic Ionic Compound

Explanation:

                     In given statement the compound given is called as Sodium oleate this means that when Oleic acid is treated with NaOH then it forms.

                     In chemistry there are few species which are involved in the formation of compounds.

  (i) Atoms:

                  It is very common that atoms of different elements combine to form compound through covalent bond. For example, H₂, O₂, N₂, F₂ e.t.c.

   (i) Ions:

                  Other than covalent compounds we have ionic compounds. Ionic compounds are made up of ions. These ions forming the ionic compounds can be monatomic like Na⁺, Br⁻, Mg²⁺, Al³⁺, N⁻³ or they can be polyatomic like CO₃²⁻, SO₄²⁻, NH₄⁺, PO₄³⁻ e.t.c.

    (iii) Polyatomic Ions:

                                     In polyatomic ions we find a charge on a molecule which contains two or more atoms bonded covalently. Hence, in given compound we have a long chain of molecule containing a negative charge neutralized by opposite +ve charged sodium ion. Hence, Sodium oleate is a polyatomic ionic compound.

5 0
3 years ago
The radius of a hydrogen atom is 37 pm and its mass is 1.67 × 10-24 g. What is the density of the atom in grams per cubic centim
RoseWind [281]

Answer:

V = 4/3 * 3.1416 * (37x10-10)3

V = 2.12x10-25 cm3

d = m/V

d = 1.67x10-24 / 2.12x10-25 = 7.87 g/cm3

The difference in temperature, let's convert F to ºC:

ºC = -80-32/1.8 = -62.22 ºC

dT = -92.6 + 62.2 = -30.4 ºC

4 0
4 years ago
Read 2 more answers
Which of the following is the correct formula for sulfuric acld?
Alona [7]

Explanation:

The answer is H2SO4 for sulphuric acid

6 0
3 years ago
Determine the number of moles of a aluminum sample containing 2.89E26 atoms.
Brut [27]

Answer:

Explanation:

hi

8 0
3 years ago
A student mixes two solutions A and B. A is blue colored and B is yellow colored. The mixture produces has a green color. A ther
Svet_ta [14]

Answer:

A

Explanation:

No temperature change was observed, hence the change is neither exothermic nor endothermic. Hence the answer is A.

4 0
3 years ago
Other questions:
  • What is the easiest way to determine the reactivity of an element
    5·1 answer
  • Which of the following elements are good insulators?
    6·2 answers
  • Which region of the periodic table shown here contains elements that are easiest to oxidize?
    5·2 answers
  • What element transmits heat easily
    11·1 answer
  • Draw structure for each of the following a) m-Xylene b) o-Cresol c) 3-Bromo-4-nitrobenzenesulfonic acid
    8·1 answer
  • How does the density of an object help scientist understand the natural world​
    7·1 answer
  • What happens when an atom of sulfur combines with two atoms of chlorine to produce SCI ?
    13·1 answer
  • Ridge fixed shape, cannot be squashed easily, with a fixed volume describes which state
    6·1 answer
  • PLeas Answer with A B C or D please be QUICK :>
    8·1 answer
  • Which feature of a balanced chemical equation demonstrates the law of
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!