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3 years ago

How many pairs of electrons are shared by adjacent carbon atoms in an alkane?

Chemistry

2 answers:

hram777 [196]3 years ago

7 0

So, the number of pair of electrons are shared between two adjacent carbon atoms in a saturated hydrocarbon is 1

Zarrin [17]3 years ago

3 0

Answer:

one

Explanation:

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alina1380 [7]

Answer:

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Hope it helps :)

4 0

2 years ago

Read 2 more answers

water is 11.19% hydrogen and 88.1% oxygen by mass. Lake superior contains about 1.2x10 kg of water. what mass of hydrogen is con

KonstantinChe [14]

Answer:

mass of hydrogen in lake = 11.19% of 12

= 1.3428

check if question is correct or not

Explanation:

3 0

2 years ago

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Help now im not trying to fail

Alekssandra [29.7K]

Answer:

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2 years ago

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The mole concept is important in chemistry because 1. it allows us to distinguish between elements and compounds. 2. it provides

Rufina [12.5K]

Answer:
<span>The mole concept is important in chemistry because, "</span>Atoms and molecules are very small and the mole concept allows us to count atoms and molecules by weighing macroscopic amounts of material".

Explanation:
To understand this question lets take an example of Hydrogen atom. Let suppose you need to react Hydrogen with Oxygen. You need exactly Two Hydrogen atoms and one Oxygen atom to form one water molecule.
The mass of 1 hydrogen atom is 1.76 × 10⁻²⁴ grams. How will you count the Hydrogen atoms??? How can you measure exactly for 1 Million Hydrogen Atoms???
Answer to these questions and Calculations lies in Mole. It is found that 1 Mole of Hydrogen weights exactly 1.008 gram and contains 6.022 × 10²³ atoms. Now, having this reference in hand you can calculate for any number of Hydrogen atoms.

Result:
So the Mole helps us to zoom a microscopic level to a macroscopic level. :)

6 0

2 years ago

What is the mass of 4.5 x 10^22 molecules of hydrogen peroxide (H2O2)? Show your work in the space below.

valentinak56 [21]

Given :

Number of molecules of hydrogen peroxide, N = 4.5 × 10²².

To Find :

The mass of given molecules of hydrogen peroxide.

Solution :

We know, 1 mole of every compound contains Nₐ = 6.022 × 10²³ molecules.

So, number of moles of hydrogen peroxide is :

$n = \dfrac{N}{N_a}\\\\n = \dfrac{4.5\times 10^{22}}{6.022\times 10^{23}}\\\\n = 0.0747 \ moles$

Now, mass of hydrogen peroxide is given as :

m = n × M.M

m = 0.0747 × 34 grams

m = 2.54 grams

Hence, this is the required solution.

6 0

2 years ago