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VashaNatasha [74]
4 years ago
5

12. Which of the following is a combustion reaction?

Chemistry
1 answer:
DochEvi [55]4 years ago
5 0

Answer:

A. CH4 + 202

+ CO2 + 2H2O

Explanation:

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Would you expect the carbonyl carbon of benzaldehyde to be more or less electrophilic than that of acetaldehyde? Explain using r
Slav-nsk [51]

Answer:

Benzaldehyde is less electrophilic than acetaldehyde

Explanation:

Electrophilicity of carbonyl carbon depends on it's positive charge density.

In benzaldehyde, phenyl group can act as an electron donating group towards carbonyl group due to it's electron donating resonating effect.

In acetaldehyde, methyl group can act as an electron donating group towards carbonyl group due to it's electron donating inductive effect.

We know that resonating effect are more stronger than inductive effect.

Henece, it is expected that positive charge density on carbonyl carbon is much lower in benzaldehyde than acetaldehyde.

So, benzaldehyde is less electrophilic than acetaldehyde.

Resonating effect of phenyl group has been shown below.

4 0
3 years ago
More than one-third of all accidental fires in food-service operations are caused by
Anika [276]

Fire is a risk in all commercial kitchens. Open flames, grease, poor house-keeping practices, electrical hazards and flammable materials are common causes of restaurant fires.

What is an accidental fire?

Accidental fires are those in which the proven cause does not involve any deliberate human act to ignite or spread the fire.

Open flames, grease, poor house-keeping practices, electrical hazards and flammable materials are common causes of restaurant fires. Employers must implement effective administrative controls to protect employees and the business from the dangers of fire.

Learn more about accidental fire here:

brainly.com/question/13322569

#SPJ1

5 0
2 years ago
Explain alley with an example​
Lostsunrise [7]

Explanation:

A narrow street or passageway between or behind city buildings. Alley is defined as a place in between something, relating to sports. An example of an alley the place on a tennis court between the sideline and service sideline. An example of an alley is the place between two outfielders on a baseball field.

hope this helps you

have a good day :)

6 0
2 years ago
We need a 3.0M aqueous HCl solution to dissolve the middle of a penny which is made of nickel. What mass of HCl is contained in
natta225 [31]

Answer:

262.8 g

Explanation:

Molarity = 3.0M

Mass = ?

Volume = 2.40L

The relationship between these quantities is given as;

Molarity = Number of moles / Volume

Number of moles =  Molarity * Volume

Number of moles = 3 * 2.4 = 7.2 mol

Mass = Number of moles * Molar mass

Molar mass of HCl = 1 + 35.5 = 36.5 g/mol

Mass = 7.2 *   36.5 = 262.8 g

5 0
3 years ago
Read 2 more answers
What is the molar mass of ace tic acid
noname [10]

Answer:

Molar mass of acetic acid = 60 g/mol

Explanation:

Molar mass of any compound is the sum of the atomic masses of all the atoms of elements present in it.

Molar mass of acetic acid:

Formula:

CH₃COOH

Atomic mass of carbon = 12 g/mol

Atomic mass of hydrogen = 1 g/mol

Atomic mass of oxygen = 16 g/mol

Molar mass of acetic acid = 12×2 + 1 × 4 + 16× 2

Molar mass of acetic acid = 60 g/mol

7 0
4 years ago
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