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
vovangra [49]
3 years ago
12

The number of bonded pairs of _______ in a covalent bond equals the bond order.

Chemistry
1 answer:
egoroff_w [7]3 years ago
5 0
<span>The number of bonded pairs of electrons in a covalent bond equals the bond order.

For example:
In molecule of hydrogen (H</span>₂), bond order is 1 (H-H), because there is one pair of electrons between hydrogen atoms.
In molecule of oxygen (O₂), bond order is 2 (O=O), because there are two pair of electrons (4 electrons) between oxygen atoms.
In molecule of nitrogen (N₂), bond order is 3 , because there are three pair of electrons (6 electrons) between nitrogen atoms.
You might be interested in
What are the rules for naming covalent compounds
arsen [322]
<span>1.Remove the ending of the second element, and add "ide" just like in ionic compounds
 2.When naming molecular compounds prefixes are used to dictate the number of a given element present in the compound
3.If there is only one of the first element, you can drop the prefix
<span>4.If there are two vowels in a row that sound the same once the prefix is added (they "conflict"), the extra vowel on the end of the prefix is removed</span></span>
6 0
3 years ago
Convert 1.71 × 1024 atoms of carbon to moles of carbon.
beks73 [17]
You need to use Avogadro's constant to convert from atoms of carbon to moles of carbon.

1.71*10^24 atoms C * (1 mole/6.022*10^23 atoms) = 2.84 moles of carbon
7 0
3 years ago
Using the following thermochemical equation, determine the amount of heat produced per kg of CO2 formed during the combustion of
Arisa [49]

Answer:  12033 kJ of heat produced per kg of CO_2 formed during the combustion of benzene

Explanation:

The balanced chemical equation for combustion of benzene is :

2C_6H_6(l)+15O_2(g)\rightarrow 12CO_2(g)+6H_2O(g)  \Delta H°rxn = -6278 kJ

Exothermic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat and \Delta H for the reaction comes out to be negative.

\text{Moles of }CO_2=\frac{\text{given mass}}{\text{Molar Mass}}=\frac{1000g}{44g/mol}=23mol      (1kg=1000g)

According to stoichiometry :

12 moles of CO_2 on combustion produce heat = 6278 kJ

Thus 23 mole of CO_2 on combustion produce heat =\frac{6278}{12}\times 23=12033kJ

Thus 12033 kJ of heat produced per kg of CO_2 formed during the combustion of benzene

5 0
3 years ago
How many moles of  dipyrithione contain 8.0 x 10^24 atoms of N?
kirza4 [7]
8E24/6.022E23= 13.28 moles, where the denominator is Avagadro's number
8 0
3 years ago
Calculate the number of grams in 9.00 x 10²⁶ atoms of potassium.
shutvik [7]

Answer: 5.84x10^4

Explanation: You start with (9.00x10^26 atoms)x(1 mol/ 6.022x10^23)x(39.10 g/1 mol)

6 0
1 year ago
Other questions:
  • A student has a rectangular block. It is 2 cm wide. 3 cm tall and 25cm long. It has a mass of 600 g. First, calculate the volume
    14·1 answer
  • In a chemical reaction, 36 grams of hydrochloric acid reacts with 40 grams of sodium hydroxide to produce sodium chloride and wa
    7·2 answers
  • Can u help?? It's science and I'm in 6th grade
    15·1 answer
  • Rank these systems in order of decreasing entropy. Rank from highest to lowest entropy.
    8·1 answer
  • During the compression stroke of an internal combustion engine,_____.
    11·2 answers
  • The K w for water at 0 ∘ C is 0.12 × 10 − 14 M 2 . Calculate the pH of a neutral aqueous solution at 0 ∘ C . p H = Is a pH = 7.2
    15·1 answer
  • If there are 2.54cm in one inch how many Inches are in 19.9​
    5·2 answers
  • What type of weathering will occur more rapidly in an area with extremely cold winters and hot summers?
    10·2 answers
  • Calculate the pOH of this solution. pH = 1.90 pOH =
    14·2 answers
  • Will has been told to check the oxygen level in a confined space, before workers are allowed to enter. Will should verify that t
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!