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GREYUIT [131]
3 years ago
12

How is a polar compound formed?

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

Answer: when two atoms do not share electrons equally in a covalent bond.

Explanation:

ehidna [41]3 years ago
6 0

Answer:

when there is one sided sharing of electrons .

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For the reaction represented by the equation 2KClO3 → 2KCl + 3O2, how many grams of potassium chlorate are required to produce 1
Vikentia [17]

 The grams  of potassium chlorate  that are required  to produce 160 g of oxygen  is   408.29  grams

 

<u><em>calculation</em></u>

 2 KClO₃→  2 KCl  + 3O₂

Step 1:  find the  moles of  O₂

moles  =  mass÷  molar mass

from periodic table  the  molar mass of O₂  = 16 x2 = 32 g/mol

moles  = 160 g÷ 32  g/mol =  5 moles

Step2 : use the  mole   ratio to determine the  moles of KClO₃

from equation given KClO₃ : O₂  is 2:3

therefore the v moles of KClO₃  =  5 moles x 2/3 = 3.333  moles


Step 3:  find the mass  of KClO₃

mass= moles x molar mass

from periodic table  the molar mass of KClO₃

= 39 + 35.5 + (16 x3) =122.5 g/mol


mass  = 3.333 moles x 122.5 g/mol =408.29 grams

7 0
3 years ago
Place the following substances in Order of decreasing boiling point H20 N2 CO
kirill [66]

Answer:

-195.8º < -191.5º < 100º

Explanation:

Water, or H20, starts boiling at 100ºC.

Nitrogen, or N2, starts boiling at -195.8ºC.

Carbon monoxide, or C0, starts boiling at -191.5ºC.

When we place these in order from decreasing boiling point:

-195.8º goes first, then -191.5º, and 100º goes last.

4 0
4 years ago
Read 2 more answers
A mixture that results when substances dissolve to form a homogeneous mixture
MrRa [10]
A mixture that results when substances dissolve to form a homogeneous mixture is a solution.
3 0
3 years ago
How many moles of the Htion in 395 mL of 1.325 M sulfuric acid (H2SO4).
Irina18 [472]

Answer:

1.05 mol

Explanation:

Step 1: Given data

  • Molarity of sulfuric acid (M): 1.325 M (1.325 mol/L)
  • Volume of solution (V): 395 mL (0.395 L)

Step 2: Calculate the moles of sulfuric acid (n)

We will use the following expression.

M = n/V

n = M × V

n = 1.325 mol/L × 0.395 L = 0.523 mol

Step 3: Calculate the moles of H⁺

H₂SO₄ dissociates completely according to the following equation.

H₂SO₄ ⇒ 2 H⁺ + SO₄²⁻

The molar ratio of H₂SO₄ to H⁺ is 1:2. The moles of H⁺ are 2/1 × 0.523 mol = 1.05 mol.

7 0
3 years ago
The amount of calcium hydroxide needed to react completely with 100.0g of nitric acid
Pani-rosa [81]

The amount of Calcium hydroxide : = 58.719 g

<h3>Further explanation</h3>

Given

100 g Nitric Acid-HNO₃

Required

The amount of Calcium hydroxide

Solution

Reaction(balanced) :

Ca(OH)₂ (s) + 2HNO₃ (aq) → Ca(NO₃)₂ (aq) + 2H₂O (l)

mol of Nitric acid (MW 63 g/mol) :

mol = mass : MW

mol = 100 : 63

mol = 1.587

From the equation, mol ratio of Ca(OH)₂ : HNO₃ = 1 : 2, so mol Ca(OH)₂ :

=1/2 x mol HNO₃

= 1/2 x 1.587

=0.7935

Mass of Ca(OH)₂ (MW=74 g/mol) :

= mol x MW

= 0.7935 x 74

= 58.719 g

5 0
3 years ago
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