They are all equally dense because they are made of the same material with the same molecular composition.
<span>Potassium chlorate is a rich source of oxygen It decomposes upon heating to produce potassium chloride and oxygen.</span>
Answer: 999851 Joules of energy is needed to evaporate the sweat that is produced
Explanation:
Latent heat of vaporization is the amount of heat required to convert 1 gram of liquid water to gaseous form at its boiling point.
Given: The heat of vaporization for water is 2257 J/g.
Thus if for 1 g , the heat required is = 2257 J
For 443 g , heat required is =
Thus 999851 Joules of energy is needed to evaporate the sweat that is produced
Answer:
The air pressure in the ears increases
The volume of air in the ears increases
The change in volume causes discomfort
It takes time for the ears to dispell excess air past the ear drum.
Explanation:
As the plane engages in a steep incline into the atmosphere, the outside atmospheric pressure decreases with altitude. The air pressure in the ear, therefore, become greater than atmospheric pressure. The air volume in the ear therefore grows and pushes on the ear causing discomfort. As the air in the cabin pressurizes the discomfort eases away as pressure equalization is restored relative to the ear.
Answer:
The answer is the level of egg above water.
Explanation:
The dependent variable is the variable that depends on something else to change.
The independent variable is the variable that changes. It also makes the dependent variable change.
The controlled variable is the variable that stays the same throughout the experiment.
For example, the independent variable in this experiment is the amount of salt that is added. The dependent variable is how the egg floats, or, in other words, the level of egg above water. The controlled variable is the amount of water in each cup.
