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
KATRIN_1 [288]
3 years ago
6

Which compound is covalently bonded? Select one: a. Al2O3 b. Fe2O3 c. SO2 d. CuCl2

Chemistry
2 answers:
Vikki [24]3 years ago
8 0

Answer:

D.

CuCl2

Explanation:

May it will help you.

azamat3 years ago
7 0

Answer:

The answer is D-CuCl2

I hope this helps

You might be interested in
According to boyle’s law, when the pressure on a gas in an enclosed container increases, the volume of that gas
Doss [256]
Decreases. Hope I helped
3 0
3 years ago
What is the H* concentration in a solution with a pH of 1.25?​
Kamila [148]

Answer:

.056

Explanation:

H+=10^-pH

- Hope that helps! Please let me know if you need further explanation.

7 0
3 years ago
What is the most important change in a chemical change?
avanturin [10]
5) state
when the state of the chemical changes that is the most important 
4 0
3 years ago
Ethylenediamine (en) forms an octahedral complex with Ni2+(aq) with the formula [Ni(en)3]2+. Ni2+(aq) + 3 en ⇌ [Ni(en)3]2+(aq) K
yawa3891 [41]

Answer:

3.125\times 10^{-19} mol/L is the concentration of Ni^{2+}(aq) in the solution.

Explanation:

Ni^{2+}(aq) + 3 en\rightleftharpoons [Ni(en)_3]^{2+}(aq)

Concentration of nickel ion = [Ni^{2+}]=x

Concentration of nickel complex= [[Ni(en)_3]^{2+}]=\frac{0.16 mol}{2 L}=0.08 mol/L

Concentration of ethylenediamine = [en]=\frac{0.80 mol}{2 L}=0.40 mol/L

The formation constant of the complex = K_f=4.0\times 10^{18}

The expression of formation constant is given as:

K_f=\frac{[[Ni(en)_3]^{2+}]}{[Ni^{2+}][en]^3}

4.0\times 10^{18}=\frac{0.08 mol/L}{x\times (0.40 mol/L)^3}

x=\frac{0.08 mol/L}{4.0\times 10^{18}\times (0.40 mol/L)^3}

x=3.125\times 10^{-19} mol/L

3.125\times 10^{-19} mol/L is the concentration of Ni^{2+}(aq) in the solution.

6 0
4 years ago
Question 2 how many valence electrons are in a neutral atom of silicon
marshall27 [118]

Si -Atomic number -14 -1s2 2s2 2p6 3s2 3p2 - 4 valence electrons

7 0
3 years ago
Other questions:
  • Can someone help me with this???​
    9·1 answer
  • What is atomic mass of an element stands for
    12·1 answer
  • What is the major organic product obtained from the following sequence of reactions? PhCH2CHO PhCH2CH2CHO PhCH2CH2COOH PhCH2COOH
    10·1 answer
  • An _____ is a substance that protects vulnerable molecules from free radicals.
    11·1 answer
  • Which of the following is an example of a monopole sound source?
    11·1 answer
  • Radioactive cobalt-60 is frequently used in treating cancer. It took 24 years for a 10 gram sample to decay to 0.625 grams. What
    11·1 answer
  • Please help me! I'm having trouble!
    8·2 answers
  • Where is carbon dioxide found in nature​
    10·2 answers
  • What is the difference between thermal energy and heat ?
    8·2 answers
  • =
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!