Answer:
The energy content of substances is related to the physical state in which the substance exists. Molecules of gases are always in motion as they possess very high kinetic energy, hence, they exist as gases. Liquid molecules are less energetic than gas molecules, hence they have less flow than gases. Solid molecules on the other are fixed at a place because they possess very low kinetic energy and can only vibrate about their fixed positions.
Explanation:
The three states in which matter exist are solid, liquid and gas.
Solids are made of molecules that are closely packed together and held together by strong intermolecular forces. The particles in a solid possess very low kinetic energy and are not free to move about but can only vibrate and rotate about their fixed positions.
Liquids particles are able to move about as they possess enough kinetic energy to limit or reduce the strength of the intermolecular forces binding them together. Thus, liquids can flow.
The particles in a gas are relatively far apart and possess kinetic energy more than the particles of a liquid or solid. The intermolecular forces binding particles of gas together are weak due to the very high kinetic energy of yhe gas particlest
a. The circulatory system in fish is one-directional while it is two-directional in humans.
b. P has a high concentration of carbon dioxide and low oxygen concentration whereas Q has high oxygen concentration and low carbon dioxide concentration.
<h3>What is the circulatory system?</h3>
The circulatory system is the system of organism and tissues which help to transport blood and other fluids through the body of a living organism.
The organs of the circulatory system include:
- The heart
- The blood vessels - veins, arteries, capillaries
a. In the given diagram sowing the circulatory system of man and the fish, it can be seen that the direction of blood flow in the fish is one way through the heart. However, in humans, the direction of blood flow is two-way through the heart.
b. The gas in P has a high concentration of carbon dioxide and low oxygen concentration. However, the gas flowing through Q has high oxygen concentration and low carbon dioxide concentration.
In conclusion, the circulatory system is important in the exchange of gases in the body.
Learn more about circulatory system at: brainly.com/question/3597250
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Answer:
Hi.. Your answer is element A
The empirical formula represents the simplest whole number shows the simplest whole number ratio of atoms in a compound. An example of this is the empirical formula for glucose (C₆H₁₂O₆) is C₃H₆O₃.
I hope this helps. Let me know if anything is unclear.
Answer:
The value of the equilibrium constant 
at this temperature is 3.42.
Explanation:
Partial pressure of the sulfur dioxide =
Partial pressure of the oxygen gas =
Partial pressure of the sulfur trioxide =
The expression of an equilibrium constant is given by :
The value of the equilibrium constant at this temperature is 3.42.
