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
zysi [14]
3 years ago
6

Which of these is a covalent compound? A. LiCl B. MgO C. AlCl3 D. CO

Chemistry
1 answer:
Fiesta28 [93]3 years ago
3 0

Answer:

C. AlCl3 is a covalent compound.

Explanation:

It is formed by mutual sharing of electrons between two atoms each contributing equal number of electrons to the electron pair.

You might be interested in
The target diol is synthesized in one step from 1-methylcyclopentene, but your lab partner exhausted the supply of that alkene.
andrezito [222]

Answer:

The reagents are CH_{3}CH_{3}O^{-},OsO_{4},NaHSO_{3}and H_{2}O.

Explanation:

1-Methylenecyclopentene is treated with HBr form 1-bromo-1-methylcyclopentane, which is treated with strong base ethoxide ion and forms 1-methylcyclopent-1-ene.

This alkene is treated with osmium tetraoxide in the presence of sodium bisulfite to form target product.

The chemical reaction is as follows.

4 0
3 years ago
Is a book sitting high upon a shelf a balanced force or an unbalanced force
Art [367]
Balanced force I think
7 0
3 years ago
Read 2 more answers
Some hypothetical alloy is composed of 12. 5 wt% of metal a and 87. 5 wt% of metal b. If the densities of metals a and b are 4.
gavmur [86]

Answer:

The number of

atoms in the unit cell is 2

Explanation:

7 0
2 years ago
Question 6 of 25<br> Why was Copernicus's discovery called the Copernican revolution?
Kaylis [27]

Answer:it represented a change in scientific thought.

Explanation:

3 0
3 years ago
If 500.0 ml of 0.10 m ca2+ is mixed with 500.0 ml of 0.10 m so42−, what mass of calcium sulfate will precipitate? ksp for caso4
attashe74 [19]

Answer : The mass of calcium sulfate precipitate will be, 6.12 grams

Solution :

First we have to calculate the moles of Ca^{2+} and SO_4^{2-}.

\text{Moles of }Ca^{2+}=\text{Molarity of }Ca^{2+}\times \text{Volume of }Ca^{2+}=0.10mole/L\times 0.5L=0.05\text{ moles}

\text{Moles of }SO_4^{2-}=\text{Molarity of }SO_4^{2-}\times \text{Volume of }SO_4^{2-}=0.10mole/L\times 0.5L=0.05\text{ moles}

As, 0.05 moles of Ca^{2+} is mixed with 0.05 moles of  SO_4^{2-}, it gives 0.05 moles of calcium sulfate.

Now we have to calculate the solubility of calcium sulfate.

The balanced equilibrium reaction will be,

CaSO_4\rightleftharpoons Ca^{2+}+SO_4^{2-}

The expression for solubility constant for this reaction will be,

K_{sp}=(s)\times (s)

K_{sp}=(s)^2

Now put the value of K_{sp} in this expression, we get the solubility of calcium sulfate.

2.40\times 10^{-5}=(s)^2

s=4.89\times 10^{-3}M

Now we have to calculate the moles of dissolved calcium sulfate in one liter solution.

\text{Moles of }CaSO_4=\text{Molarity of }CaSO_4\times \text{Volume of }CaSO_4=4.89\times 10^{-3}mole/L\times 1L=4.89\times 10^{-3}\text{ moles}

Now we have to calculate the moles of calcium sulfate that precipitated.

\text{Moles of }CaSO_4\text{ precipitated}=\text{Moles of }CaSO_4\text{ present}-\text{Moles of }CaSO_4\text{ dissolved}

\text{Moles of }CaSO_4\text{ precipitated}=0.05-4.89\times 10^{-3}=0.045\text{ moles}

Now we have to calculate the mass of calcium sulfate that precipitated.

\text{Mass of }CaSO_4\text{ precipitated}=\text{Moles of }CaSO_4\text{ precipitated}\times \text{Molar mass of }CaSO_4

\text{Mass of }CaSO_4\text{ precipitated}=0.045moles\times 136g/mole=6.12g

Therefore, the mass of calcium sulfate precipitate will be, 6.12 grams

5 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the theoretical value for the number of moles of CO2 that should have been produced in each balloon assuming that 1.45
    10·1 answer
  • How is a polymer like a chain of paper clips
    12·1 answer
  • the water in a tea pot is heated on a stove top. The temperature of the water increases. Is this an endothermic or exothermic pr
    10·1 answer
  • Help me with this question so I can move on from it.
    9·1 answer
  • Inversion is a type of mutation that
    11·2 answers
  • What element from the "Periodic Table" is named after an "Austrian Scientist"??
    15·1 answer
  • What property did mosely use to organize the periodic table?​
    10·1 answer
  • What mass is Thallium (I) sulfide will be formed from 36.00g of thallium reacting with excess sulfur
    5·1 answer
  • What is the specific heat of a substance if 1450 calories are required to raise the temperature of a 240g sample by 20℃?
    15·1 answer
  • Which statement best explains why mass is not conserved in a nuclear change?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!