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4 years ago

If the products of a reaction are co2 and 2h2o what is known about the reactants

Chemistry

2 answers:

Makovka662 [10]4 years ago

7 0

The reactants have one C atom and four O and H atoms. Hope this helps :)

yanalaym [24]4 years ago

6 0

<u>Answer:</u> The reactants must contain 1 atom of carbon, 4 atoms of hydrogen and 4 atoms of oxygen.

<u>Explanation:</u>

Reactants and products together form a chemical equation.

A balanced chemical equation always follow law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. This also means that total number of individual atoms on reactant side must be equal to the total number of individual atoms on the product side.

We are given:

Products are $CO_2\text{ and }2H_2O$ . This means that the products has 1 atom of carbon, 4 atoms of hydrogen and 4 atoms of oxygen.

Hence, the reactants must also contain the same number of atoms.

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Which of the following reactions takes place with an increase in entropy under standard conditions?a. NH4(aq)+ CH3COO-(aq) ---&g

Elden [556K]

Answer:

a. NH4(aq)+ CH3COO-(aq) ---> NH3 (aq) +CH3COOH(aq)

Explanation:

Entropy -

In a system, the randomness is measured by the term entropy .

Randomness basically refers as a form of energy that can not be used for any work.

The change in entropy is given by amount heat per change in temperature.

When solid is converted to gas entropy increases,

As the molecules in solid state are tightly packed and has more force of attraction between the molecules, but as it is converted to gas, the force of attraction between the molecule decreases and hence entropy increases.

So,

The particles of the substance , if are tightly held by strong force of attraction will decrease the entropy ,

And

If the particles are loosely held , the entropy will increase .

When liquid is converted to solid entropy decreases,

As the molecules in liquid state are loosely packed and has less force of attraction between the molecules, but as it is converted to solid, the force of attraction between the molecule increases and hence entropy decreases.

Hence ,

The order of entropy is -

gas > aqueous > liquid > gas .

Hence, from the question ,

The reaction where there is increase in entropy is -

a. NH₄(aq)⁺ + CH₃COO⁻(aq) ---> NH₃ (aq) + CH₃COOH(aq)

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3 years ago

What is the empirical formula of a compound that has a pseudoformula of C3.5H8?

KIM [24]

Answer:

The ratio of carbon and hydrogen atoms = 3.5 : 8

= 7 : 16

Then,the empirical formula is C7H16

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3 years ago

Infer why the brown marmarated stink bug (BMSB) is an invasive species in the United States.

Anna71 [15]

Answer:

A. China And Japan.

Explanation:

The species is native to China/Japan and was introduced into the United States in the mid-1990s, possibly stowing away in a shipping container. The presence of this stink bug is concerning for farmers because it feeds on a large number of high-value crops and ornamental plants in its immature and adult life stages.

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2 years ago

What is the chemical symbol of the terminal atom in the lewis structure of OH- ?

NARA [144]

Answer:

kindly refer to the picture attached

Explanation:

Have a great day . keep smiling

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2 years ago

Which Earth motion describes the wobbling of the Earth around its precessional axis and

Alexeev081 [22]

Answer:

Nutation

Explanation:

The counterclockwise rotation of planet earth around its own axis is defined as the Earth Rotation. The earth rotates about the line called "the axis of rotation," it is an imaginary line that passes through the North and South Poles of the planet, which the earth rotates about.

Hence, earth rotates once in about 24 hours with respect to the Sun, from West to East and thus giving rise to;

a. Day and night

b. Seasons

The Earth motion which describes the wobbling of the Earth around its precessional axis and could alter the amount of seasonal effects is known as nutation.

Basically, nutation usually occurs when the precessional motion of a planetary body such as planet earth experience some form of irregularities when it is rotating.

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3 years ago