What is the difference between the two types of igneous rocks? The two main categories of igneous rocks are extrusive and intrusive. Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. Intrusive rocks are formed from magma that cools and solidifies within the crust […]
Can a referee change his decision after final whistle?
Can a referee change his decision after final whistle? The referee may only change a decision on realising that it is incorrect or, at his discretion, on the advice of an assistant referee or the fourth official, provided that he has not restarted play or terminated the match. If play has not restarted, the referee […]
Do metallic bonds dissolve in water?
Do metallic bonds dissolve in water? Metallic bonds are not soluble in water because: They are held together by strong metallic bonds and so no solvent to solute attractions could be stronger than these, so these substances are insoluble also they don’t have the necessary intermolecular forces (namely hydrogen bonds) that are present in water. […]
What is a quantized value?
What is a quantized value? Quantized: In quantum mechanics, the concept that a system cannot have any possible energy value but instead is limited to certain specific energy values (states). The states depend on the specific system in question. How is a piano An example of a quantized system? When you play a piano, you […]
Why does temperature increase as pressure increases?
Why does temperature increase as pressure increases? The temperature of the gas is proportional to the average kinetic energy of its molecules. Faster moving particles will collide with the container walls more frequently and with greater force. This causes the force on the walls of the container to increase and so the pressure increases. What […]
What is the difference between radar and Doppler radar?
What is the difference between radar and Doppler radar? How is Doppler different from conventional radar? Conventional radar detects the presence of dense objects (such as precipitation) in the field, while the Doppler system detects a phase shift between the outgoing and incoming signals. What does a tornado look like on Doppler radar? Meteorologists look […]
Is gold a solute?
Is gold a solute? Not all solutions are liquids. Solutions can also be solids. In a solid solution, both the solvent and the solute are solids. In this case, gold is the solvent and the other metals are the solutes. Why is gold a homogeneous mixture? Because the material is uniform throughout, it is homogeneous. […]
Why is fluidity of the membrane important?
Why is fluidity of the membrane important? Fluidity is important for many reasons: 1. it allows membrane proteins rapidly in the plane of bilayer. 2. It permits membrane lipids and proteins to diffuse from sites where they are inserted into bilayer after their synthesis. How do membranes stay fluid? The cell membranes remain fluid due […]
What is the importance of communicating your research study to others?
What is the importance of communicating your research study to others? Moreover, by communicating research results with colleagues in the scientific community, we allow ourselves to receive credit for doing the work, connect with others doing similar work thereby leading to new collaborations, and establish our results within the scientific knowledge base that future research […]
Do live rocks die?
Do live rocks die? During the shipping process of all live rock, either pre-cured or uncured, some die-off will occur. For this reason, all live rock must be cured again, before it is placed in aquariums that contain fish, corals, or other marine animals. Will cold water kill live rock? Member. Yes, live rock can […]