Which equation represents sublimation?(1) I2(s) ==> I2(g) (3) I2(l)==>I2(g)
(2) I2(s) ==>I2(l) (4) I2(l)==>I2(s)

Answers

Answer 1

Answer:

Answer : The correct options is, (1) $I_2(s)\rightarrow I_2(g)$

Explanation:

(1) $I_2(s)\rightarrow I_2(g)$ :

This reaction shows sublimation process in which the phase changes from solid state to gaseous state at constant temperature.

(2) $I_2(l)\rightarrow I_2(g)$ :

This reaction shows evaporation process in which the phase changes from liquid state to gaseous state at constant temperature.

(3) $I_2(s)\rightarrow I_2(l)$ :

This reaction shows melting process in which the phase changes from solid state to liquid state at constant temperature.

(4) $I_2(l)\rightarrow I_2(s)$ :

This reaction shows freezing process in which the phase changes from liquid state to solid state at constant temperature.

Hence, from this we conclude that the option (1) equation represents sublimation process.

Answer 2

Answer: The answer is (1). The definition of sublimation is the change of solid substance directly to gas. In the equation, the "s" stands for solid. The "l" stands for liquid. And the "g" stands for gas.

Related Questions

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Which of the following is not an example of an extensive physical property?A.) Mass B.) Shape C.) Color D.) Volume
What is the formula mass for fe(no3)3
Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3) with salicylic acid (C7H6O3) to form aspirin (C9H8O4) and acetic acid (C2H4O2). The balanced equation isC4H6O3+C7H6O3→C9H8O4+C2H4O2In a laboratory synthesis, a student begins with 2.90 mL of acetic anhydride (density=1.08gml−1) and 1.23 g of salicylic acid. Once the reaction is complete, the student collects 1.24 g of aspirin.1. Determine the theoretical yield of aspirin for the reaction. Express your answer using three significant figures.2. Determine the percent yield of aspirin for the reaction. Express your answer using three significant figures.
Explain why fluorine and chlorine are in the same group of the periodic table.Give the electronic structures of fluorine and chlorine in your explanation.

Which of the following processes would you predict to have an increase in entropy?condensation of water

freezing water

melting ice

deposition of CO2 (changing from a gas to solid)

Answers

Among the choices given, the best answer is the third option. Melting ice shows an increase in entropy. Entropy is the degree of disorderliness in a system. Among the phases, solid has the most ordered structure which means it has the least entropy. The ice melting shows a phase change from solid to liquid. Liquid molecules are more disorganized than the solid thus there is an increase in entropy.

Answer: melting ice

Explanation:

Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.

1. condensation of water : Condensation process is a process where gaseous state changes to liquid state., thus decreasing randomness and decreasing entropy.

2. Freezing water : Freezing process is a process where liquid state changes to solid state, thus decreasing randomness and decreasing entropy.

3. melting ice: Fusion process is a process where solid state changes to liquid state, thus increasing randomness and increasing entropy.

4. deposition of $CO_2$ : deposition process where gaseous state changes to solid state by escaping liquid state, thus decreasing randomness and decreasing entropy.

Solute definition chemistry

Answers

The solute is the substance that is being dissolved into the solvent.

Example:

In lemonade, the powder is the solute, and the water is the solvent.

Describe events in the formation of an evaporite?

Answers

* Alcohol, in function of its defined chemical, evaporates much faster than a water.

* The clothes drying on the Clothesline, the river that evaporates, a puddle of water that dry, etc.

hope this helps!

Definition of periodic trends

Answers

Periodic trends are specific patterns in the properties of chemical elements that are revealed in the periodic table of elements. Major periodic trends include electronegativity, ionization energy, electron affinity, atomic radii, ionic radius, metallic character, and chemical reactivity.

Final answer:

Periodic trends are patterns in the periodic table that help predict certain properties of elements. They include atomic radius, ionization energy, and metallic character, which change based on the element's position in the table.

Explanation:

Periodic trends refer to specific patterns presented in the periodic table that reflect different aspects of a certain element, including its size and electronic properties. They are instrumental to chemists as they provide a tool for quickly predicting an element's properties. These trends occur because of the similar atomic structure of the elements within their respective group families or periods, and due to the periodic nature of the elements.

Majorperiodic trendsconsist of atomic radius, ionization energy, and metallic character. As an example, ionization energy and electronegativity typically intensify from left to right in a row and from the base to the top in a column. In contrast, the atomic size and the metallic character increase from right to left in a row and from the top to the bottom in a column. The periodic table's structure allows us to qualitatively evaluate how these properties of the elements change based on their position on the table.

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What law determines that chemical equations must be balanced? What does this law say?

Answers

This is seen in the first law of Thermodynamics stating that matter and energy cannot be destroyed nor created.

A(n) ____________ is a substance in which all the exact combinations of elements are always the same.a.synthetic element
b.compound
c.mixtures
d.solution

Answers

A compound is a substance in which all the exact combinations of elements are always the same. The correct option is b.

What is a compound?

Compounds are substances that are made up of two or more substances or elements. A compound is a mixture of two elements, they share bonds with each other, and they form a totally different substance than the above elements.

For example, NaCl is a compound. It is formed by two elements, sodium, and chloride. These elements form a different compound that is common table salt.

Some compounds are pure substances because they are made up of only elements that mix together. They do not contain any impurity or any other substance. They share chemical bonds with each other.

Thus, the correct option is b. compound.

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b. compound
source is Glencoe Science book grade 7.
Also I just happening to be learning about this at school

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