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Viktor [21]
3 years ago
12

Why is CCl4 classified as a non polar molecule?

Chemistry
1 answer:
Lerok [7]3 years ago
6 0
<span>CCl4 is a non polar molecule because though each of the C-Cl bond is polar but the resultant of all these dipole moments is zero as its a symmetrical tetrahedral shape molecule ,and their is a cancellation of dipole moment in each pair.</span>
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Write the name for the compound Al₂S₃
Svetlanka [38]

Answer:

Uh Joe stinky?

Explanation:

7 0
3 years ago
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Calcium carbonate decomposes into calcium oxide and carbon dioxide when heated. Calculate the mass of carbon dioxide released wh
erastovalidia [21]
<h2>Answer: 131.9 g</h2>

<h3>Explanation:</h3>

<u>Write a Balanced Equation for the decomposition</u>

CaCO₃     →     CaO    +    CO₂

<u></u>

<u>Find Moles of CO₂ Produced</u>

Since the mole ratio of  CaCO₃  to CO₂ is 1 to 1,

the moles of CaCO₃ = moles of CO₂

moles of CaCO₃   = mass ÷ molar mass

                             = 300 g ÷ 100.087 g/mol

                             = 2.997 moles

∴ moles of CO₂ = 2.997 moles

<u>Determine Mass of CO₂</u>

Mass = moles × molar mass

         = 2.997 mol × 44.01 g/mol

         = 131.9 g

<u></u>

<h3>∴ when 300 g of calcium carbonate is decomposed, it produces 131.9 g of carbon dioxide.</h3>
6 0
2 years ago
Fill in the blanks to determine the number of protons and electrons in a nitrogen ion. (consult the periodic table to determine
Stolb23 [73]

Answer:- 7 protons and 10 electrons.

Solution:- Atomic number for nitrogen atom is 7.

For neutral atom, atomic number = number of protons = number of electrons

An ion is formed if electrons are lost or gained by the neutral atom. Here we have nitride ion where nitrogen has -3 charge. This negative 3 charge indicates the gain of 3 electrons by nitrogen atom. The number of protons remains unchanged, means there are still 7 protons.

electrons for the given ion = 7 + 3 = 10

So, N^-^3 ion has 7 protons and 10 electrons.

5 0
2 years ago
Read 2 more answers
A vehicle travels at the same speed from point A to point B then from point B to point A
Ber [7]

Answer:

The speed is positive either direction.

Explanation:

  • It is given that, a vehicle travels at the same speed from point A to point B then from point B to point A.
  • We know that speed is a scalar quantity and velocity is a vector quantity.
  • Speed has only magnitude while velocity have both magnitude as well as direction.
  • In this case, the vehicle will have positive speed in either direction.
  • Hence, the correct option is (D)
7 0
3 years ago
sa solution is made by dissolving 26.42 g of (NH4)2SO4 in enough H2O to make 50.00 mL of solution. what is the molarity of the s
krok68 [10]
The answer is 0.2 M.

Molarity is a measure of the concentration of solute in a solution

c = n ÷V<span>
c - concentration of solute,
n - number of moles of solute
V - volume of solution

</span>

We know:

V = 50.00 mL = 0.05 L

c = ?

n = ?


Let's calculate concentration:

c = m/(V * Mr)


The molar mass of <span>(NH4)2SO4 is the sum of atomic masses (Ar) of its elements):
Mr (</span><span>(NH4)2SO4) = 2Ar(N) + 8 Ar(H) + Ar(S) + 4Ar(O)
                           = 2 * 14 + 8 * 1 + 32 + 4 * 16 =
                           = 28 + 8 + 32 + 64 = 
                           = 132 g/mol

c = 26.42 g/ (0.05 L * 132g /mol) =26.42 g/ 6.6 L*g/mol = 4 mol/L = 4 M

Now, calculate molarity:
</span>c = n ÷V
n = c * V
n = 4 mol/L * 0.05 L
n = 0.2 mol
4 0
3 years ago
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