Answer:
A. Helium
Explanation:
In chemistry, a noble gas refers to a group of elements placed in group 18, which is located in the last column from left to right in the periodic table. Additionally, these elements are defined by their low reactivity, also as gases, they do not have color or odor. Helium is part of this group that contains other 5 elements because Helium characteristics are similar to other noble gases, indeed this is the first noble gas in the periodic table. Additionally, helium is an abundant element found in all the universe especially in stars. Thus, the element that is a noble gas is Helium.
All the hydrohalic acids are equally strong because of the leveling effect.
<h3>
What is leveling effect?</h3>
- The effect of solvent on the properties of acids and bases is Leveling effect or solvent leveling
- The strength of a strong acid will be limited ("leveled") by the basicity of the solvent. Similarly, the strength of a strong base will be leveled by the acidity of the solvent.
- When a strong acid is dissolved in water, it reacts with it to form hydronium ion (H3O+).
- An example of this would be the following reaction, where "HA" is the strong acid: HA + H2O → A⁻ + H3O⁺
To learn more about hydrohalic acids: brainly.com/question/12210499
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Answer: as the temperature increases, the kinetic energy of the molecules increases
Explanation: The kinetic energy of the molecules is the energy possessed by virtue of motion of the particles.
Kinetic energy of the particles is directly proportional to the temperature of the gas.
where T= temperature
R= gas constant
Thus if the temperature is increased, the molecules start moving more randomly and gain kinetic energy.
Answer:
Radiation
Conduction
Convection
Explanation:
<u>Radiation:</u> Transfer of heat by electromagnetic rays (Example: A microwave heating food)
<u>Conduction:</u> Transfer of heat energy from one object to another through direct contact (Example: Getting out of bed and your warm feet touch cold tile, making the tile warm and your feet cold)
<u>Convection:</u> Movement of heat by a fluid such as air or water (Example: A convectional oven works by heating the air inside the oven to evenly cook food)
Hope this helps!
Potassium Iodide have a lot of strong bonds which requires a very high temperature (high energy) to break them and change into a different state of matter.
