According to Table I, which equation represents a change resulting in the greatest quantity of energy released? 2C(s) + 3H2(g) → C2H6(g) 2C(s) + 2H2(g) → C2H4(g) N2(g) + 3H2(g) → 2NH4(g) N2(g) + O2(g) → 2NO(g)

Answers

Answer 1

Answer: The answer is N2+3H2->2NH4. You can get the heat change on Table I. After checking the table I, you can get the ΔH for every reaction. The positive sign means absorbing energy and negative sign means releasing energy.

Related Questions

A solution can be both a. Dilute and concentrated b. Saturated and dilute c. Saturated and unsaturated d. Supersaturated and saturated e. None of these
The age of the solar system is estimated by the dating of rocks?
Given the reaction below: N2O4 (g) ⇌ 2 NO2 (g)Kc= 4.2 What is the equilibrium concentration of N2O4 if the equilibrium concentration of NO2 is 0.785 M?
Which of the following values best classifies a bond between 2 atoms as being ionic?A. An electronegativity difference of greater than 1.7 between the atoms B. An electronegativity difference of greater than 2.7 between the atoms C. An electronegativity difference of less than 1.7 between the atoms D. An electronegativity difference of less than 2.7 between the atoms
Arrange this letters plss1.tedsaturauntionsolu2.ratedsatulutisoonI will give u 15 points

Which question would most likely be studied by a physicist?A. Were there ever any living organisms on Mars?
B. How can the forces on a space probe be controlled so it will land
on Mars?
O C. What type of substances make up the soil on Mars?
O D. Should the government spend taxpayers' money to send space
probes to Mars?

Answers

Answer:A

Explanation: Were there any living organisms is the answer because physics is the study of matter,its motion and behaviour of space and time and some other topics like energy and force.

Answer:

Explanation:

Forces and vectors on a probe are a physics thing

As the temperature of a sample of matter is increased, what happens to the average kinetic energy of the particles in the sample?A. It decreases.
B. It increases.
C. It does not change.

Answers

Answer:

B. It increases.

Explanation:

The kinetic energy is associated with the motion of the particles of a substance.

When the temperature increases, the movement will increase, which means that the velocity of the particles will increase.

According to the mathematical defenition of kinetic energy

$Ek = (1)/(2) mv^(2)$

The higher the velocity, the higher the kinetic energy.

If the matter is made by a monoatomic gas, the relation between the kinetic energy and temperature is even more evident:

$Ec = (3)/(2)(R)/(Na) T$

R: gas constant

Na: Avogadro's number

T: temperature

it would be
B. it increases.

If you make an electromagnet using a battery circuit and a steel nail, how can you increase its magnetic strength? A. replace the nail with a copper rod B. wrap more coils of wire around the nail C. use a longer nail D. remove the plastic insulation from the wire coil

Answers

Answer: The correct answer is "wrap more coils of wire around the nail".

Explanation:

Electromagnet: When the current passes through iron core wounded by the coils then it will get magnetized. It is not a permanent magnet.

It will loose its magnetism when the current does not flow in it.

The poles of the electromagnet can be changed. They are not fixed.

In the electromagnet, the strength of the magnetism can be increased or decreased by increasing the number of turns in the coil and by increasing the current.

In the given problem, If you make an electromagnet using a battery circuit and a steel nail, the magnetic strength can be increased by wrapping more coils of wire around the nails.

Therefore, the correct option is (B).

we can increase the strength of an electromagnet by wrapping more coils of wire around the nail.

would you select water or gasoline to try dissolving the following : table sugar, motor oil, rubber from tire marks, adhesive residue from a packing tape

Answers

To know the answer, we determine the polarities of the solvent we have. Water is polar and gasoline is nonpolar. We remember that like dissolves like. Therefore, the answers are:

table sugar = water
motor oil = gasoline
rubber from tire marks = gasoline
adhesive residue from a packing tape = gasoline

Answer:

table sugar: water

motor oil: gasoline

rubber from tire marks: gasoline

adhesive residue from a packing tape: gasoline

Explanation:

Like dissolves like so a polar compound will dissolve in a polar solvent and a non polar compound will dissolve in a non-polar solvent. The intermolecular forces of attraction are responsible for the dissolution of substances in different solvents.

For example, polar solute exhibit hydrogen bonding and dipole interaction with polar solvents (water). Non-polar solute exhibit London dispersion forces with non-polar solvents(gasoline).

The only way to seperate a compound into its elements is by a

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What is the alpha decay of Radon-198?

Answers

The alpha decay of Radon-198 produces alpha particle and ¹⁹⁴₈₄Po.

What is alpha decay?

Alpha decay is a type of radioactive disintegration in which some unstable atomic nuclei spontaneously expel an alpha particle to dissipate excess energy.

Alpha decay of Radon-198 is shown as:

¹⁹⁸₈₆Rn → ⁴₂He + ¹⁹⁴₈₄Po

In the above decay from the parent nuclei, daughter nuclei (¹⁹⁴₈₄Po) and alpha particle (⁴₂He) is produced.

Hence daughter nuclei of the alpha decay of Radon-198 is ¹⁹⁴₈₄Po.

To know more about alpha decay, visit the below link:
brainly.com/question/13512293

#SPJ2

86198Rn => 24He + 84194Po

The radon is shown on the left, and the alpha particle, which is a helium nucleus, is shown of the right with the polonium.

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