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
padilas [110]
3 years ago
11

Elemental boron is produced in one industrial process by heating diboron trioxide with magnesium metal, also producing magnesium

oxide as a by-product. write the unbalanced equation for this reaction.
Chemistry
1 answer:
Maksim231197 [3]3 years ago
7 0
Answer is: B₂O₃ + Mg → B + MgO.
B₂O₃ + 3Mg → 2B + 3MgO, balanced.
B₂O₃ - diboron trioxide. White, glassy solid compound.
B - boron. Metalloid, crystalline boron is  and amorphous<span> boron is a brown powder.
Mg - magnesium. S</span><span>hiny, gray and solid metal.
MgO - magnesium oxide. W</span><span>hite, </span>hygroscopic<span> solid powder.</span>
You might be interested in
NaOH(aq) + MgSO4(aq) →
Cerrena [4.2K]

Answer:

if balanced reaction then 2 NaOH + MgSO4 → Mg(OH)2 + Na2SO4

Explanation:

3 0
3 years ago
Study the diagram about the varying pressures of Earth’s Layers.
melomori [17]

Answer:

A) Outer core

Explanation:

just took the test

3 0
3 years ago
Read 2 more answers
2. What is critical mass?
Fed [463]

A critical mass is the smallest amount of fissile material needed for a sustained nuclear chain reaction.

8 0
4 years ago
The atomic radii of a divalent cation and a monovalent anion are 0.62 nm and 0.121 nm, respectively. (a) Calculate the force of
Zepler [3.9K]

Answer:

\boxed{8.4\times 10^{-10} \text{ N}}

Explanation:

The formula for the force exerted between two ions is  

F = \dfrac{kq_{1}q_{2}}{r^{2}} = \dfrac{kz_{1}z_{2}e^{2}}{r^{2}}

where the Coulomb constant

k = 8.988 × 10⁹ N·m·C⁻²

Data:

z₁ = +2; r₁ = 0.62    nm

z₂ =  -1;  r₂ = 0.121 nm

Calculations:

r = r₁ + r₂ = 0.62 + 0.121 = 0.741 nm

F =\dfrac{8.988 \times 10^{9} \text{ N $\cdot$ m$^{2} \cdot$ C$^{-2}$} \times 2 \times (-1) \times ( 1.602 \times 10^{-19} \text{ C})^{2}}{(0.741 \times 10^{-9} \text{ m})^{2}}\\\\ = -\mathbf{8.4\times 10^{-10}} \textbf{ N}\\\text{The attractive force between the ions is } \boxed{\mathbf{8.4\times 10^{-10}} \textbf{ N}}

3 0
3 years ago
Which describes a characteristic of a terminal moraine? A. It can cause sediment to be deposited in sandy ridges. B. It can crea
irakobra [83]
I think the correct answer from the choices listed above is option D. The statement t hat describes a characteristic of a terminal moraine would be that it <span>can pluck pieces of rock out of a mountain to create a circular basin. Hope this answers the question. Have a nice day.</span>
4 0
3 years ago
Other questions:
  • Which unit can be used to express the concentration of a solution
    10·2 answers
  • A jogger runs the first 1000 meters of a race in 250 seconds. What is the joggers speed
    11·1 answer
  • Which compound contains both ionic and covalent bonds
    14·2 answers
  • Which statement best describes the nucleus of an aluminum atom?
    15·2 answers
  • Balance the following reaction. 2Ca3(PO4)2 + C + 6SiO2 → CaSiO3 + P4 + CO
    12·2 answers
  • Which of these is a freshwater reservoir?
    11·1 answer
  • To ensure that the air in the shuttle remains free of excess CO2, engineers test the air-purification system. they combine 1.000
    9·2 answers
  • Assume that it takes 64.25 mL of a 0.1555 M HCl solution to fully neutralize the calcium carbonate from one Tums tablet. How man
    15·1 answer
  • What happened to the FREQUENCY of the wave as the instrument got bigger?
    6·1 answer
  • Question
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!