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maxonik [38]
3 years ago
11

I need help with #4... Chemistry is my worst subject.

Chemistry
1 answer:
ella [17]3 years ago
5 0
Use slader.com it helps with all textbook work!
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Which is larger, an atom or a molecule??
skad [1K]
A molecule is larger because it is a bond of atoms.
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3 years ago
HELLPPPPP MEEEEEE
umka2103 [35]

The products and the reactants are the components of the reaction. The equation of phosphoric acid represents the decomposition reaction as it forms oxygen and water. Thus, option a is correct.

<h3>What is a decomposition reaction?</h3>

A decomposition reaction is a  chemical breakdown of the reactant into two or more products. The large and complex compound breaks into smaller and simpler molecules.

The following equation, 4 H₃PO₄ → P₄ + 5 O₂ + 6 H₂O is an example of decomposition as phosphoric acid breaks into phosphorus, water, and oxygen molecules.

Therefore, option a. the reaction of phosphoric acid is a decomposition reaction.

Learn more about decomposition reaction here:

brainly.com/question/24936069

#SPJ1

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2 years ago
The specific heat of water is 4.18 J/g•°C. How much heat does 225.0 g of water release when it cools from 85.5°C to 50.0°C? Ente
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The answer is 33400J
4 0
3 years ago
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Draw a Lewis structure for H2O that obeys the octet rule if possible and answer the following questions based on your drawing. 1
Nataliya [291]

This is an incomplete question, here is a complete question.

Draw a Lewis structure for H₂O that obeys the octet rule if possible and answer the following questions based on your drawing.

For the central oxygen atom:

The number of lone pairs =

The number of single bonds =

The number of double bonds =

Answer : The Lewis structure for H₂O is shown below.

For the central oxygen atom:

The number of lone pairs = 4

The number of single bonds = 2

The number of double bonds = 0

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The representation of valence electrons of an atom by dots around the symbol of an element is said to be the Lewis-dot symbol.

In the representation of Lewis-symbol, one electron dot must put on each side of the element symbol then paired the electrons.

The given molecule is, H_2O

As we know that hydrogen has '1' valence electrons and oxygen has '6' valence electrons.

Therefore, the total number of valence electrons in H_2O = 2(1) + 6 = 8

According to Lewis-dot structure, there are 4 number of bonding electrons and 4 number of non-bonding electrons.

For the central oxygen atom:

The number of lone pairs = 4

The number of single bonds = 2

The number of double bonds = 0

5 0
3 years ago
The periodicity of the properties of elements is chiefly due to the
Lina20 [59]

Answer: option A.

Explanation:

6 0
3 years ago
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