option of d is the write answer
Answer:
Propane and butane are pure substances, which means that each one of them is made of only one type of molecule—propane molecules or butane molecules. In contrast, gasoline, diesel, and kerosene are not pure substances; they are mixtures of more than one substance.
Explanation:
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Use of thermostat is the most effective way to keep the reaction at a control temperature.
<h3>What is the most effective way to keep the reaction in control? </h3>
The reaction takes place in a thermostat is the most effective way to keep the reaction at a controlled and steady temperature because thermostat regulates the temperature of that solution which is placed in it. If the temperature goes higher then the extra heat is released from the system.
So we can conclude that use of thermostat is the most effective way to keep the reaction at a control temperature.
Learn more about temperature here: brainly.com/question/24746268
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Answer:
The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays. White light is apparently colorless light, for example ordinary daylight. It contains all the wavelengths of the visible spectrum at equal intensity.
Explanation:
Antoine Lavoisier proved that oxygen is required for material to burn. Without oxygen, the fire goes out which is easily testable.