Answer:
"The number of air molecules above a surface determines air pressure. As the number of molecules increases, they exert more pressure on a surface, and the total atmospheric pressure increases. By contrast, if the number of molecules decreases, so too does the air pressure."
2 cm east is the answer because you go east 5.5 cm and then go back in a sense 3.5 so its basically 5.5-3.5 because its backwards while still facing eat
<u>Answer</u>:
If beaker tongs are not available, we could use crucible tongs to handle the hot beaker
<u>Explanation</u>:
Crucible tongs is tool shaped like a scissor where instead of two blades, two pincers or pieces of metals that concave together is used. They help us to hold or grasp a hot beakers, flasks or even small beakers. It is difficult for the people to catch or hold the hot beakers directly. So crucible tongs plays a vital role when burning, or using hot objects in the chemical laboratory.Crucible tongs are generally made with strong metal such as nickel, stainless or oxidized steel so as to withstand very high and extreme temperatures.
Electronegativity! It is a big and very important word lol
Convection is the heat transfer due to bulk movement of molecules within fluids such as gases and liquids, including molten rock (rheid). Convection takes place through advection, diffusion or both.
Convection cannot take place in most solids because neither bulk current flows nor significant diffusion of matter can take place. Diffusion of heat takes place in rigid solids, but that is called heat conduction. Convection, however, can take place in soft solids or mixtures where solid particles can move past each other.
Hope this helps you if not my bad.