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When MgSO4 is dissolved in water Mg plus 3 and SO-2 ions move freely but S plus 6 and O-2 do not move freely?
It is correct.
Which molecues cross the membrane of a cell easily and which do not?
Non-polar molecules (such as fatty acids, steroid hormones and O2) pass freely through the cell membrane. Small uncharged molecules (such as H2O) also pass freely, but are slower. Large, polar molecules and ions (such as Na+ and K+) do not pass freely. Macromolecules (such as proteins and polysaccharides) do not pass through the cell membrane. Molecules and ions that cannot pass freely through the cell membrane rely on other means, such as protein transporters, to move in to the cell.
What type of molecule gains a charge when dissolved in water?
If it can be dissolved in water, it will have a charge because it will form freely moving ions, so basically, all molecules that are soluble in water will form freely moving ions, which are charged
Why do ionic crystals conduct electric currents in the liquid phase or when dissolved in the water but do not conduct electric currents in the solid phase?
because when the ions can move around freely, they can conduct electricity better
In a solid are the particles are packed closely together but they can move past each other freely?
No. They are packed closely together, and can not move freely.
Do ionic compounds dissolve in water conduct electricity because they break into gases that move freely?
They break into ions that can move freely. so it false
A gas is a collection of what that move about freely?
Gas is a collection of gas phase particles that move around freely. The gas phase particles are ions, molecules or atoms.
When MgSO4 is dissolved in water Mg plus 3 and SO-2 ions move freely but S plus 6 and O-2 do not move freely?
It is correct.
When are salts excellant conductors of electricity?
Salts are normally very brittle and hard, but when their ions can move about salts are excellent electrical conductors. this is possible when a salt melts or dissolves. when a salt melts the ions that make up the crystal can freely move past each other. Molten salts are good conductors although they do not work as well as metals. Similarly if a salt dissolves on water it's ions are no longer held tightly in a crystal because the ions can move freely the solution can conduct electrisity
Why can NaCl only conduct in a solution?
Conduction of electricity requires the free movement of charged particles, be they electrons or ions. In solid NaCl, the Na+ or Cl- ions are bound to each other in a rigid crystal structure. They cannot move freely, so cannot conduct electricity. In NaCl solutions, the ions exist separately in solution and can move freely; carrying the current.
Are ionic crystals good conductors?
Ionic crystals are not good conductors because they are tightly bonded and the ions are not able to move freely
Under what condition ionic coumpounds conduct a current?
Ionic compounds conduct the electricity when their ions move freely that means in molten state or in aqueous solution.
Why is a solid NaCl not an electrolyte?
Because ions (Na+ and Cl-) cannot move in their crystallic (= solid) lattice. When dissolved in water they can freely move around seperately: Na+ moves to the cathode (- , negative electrode) Cl- move to the + side anode.
What moves freely in an ionic compound?
Ions and only when in solution
Why ionic solids cannot conduct electricity in the solid state?
Electric current is moving charges. Solid ionic compounds do not conduct electricity because the charged ions are locked into place, causing the melting points of ionic compounds to be very high-often well above 300 degrees C. Vvlake11
Delocalized valence electrons are typical of ionic compounds?
I do not think so. It should be metallic compound. Electrons could move freely between the positive ions.
What type of material allows electrons to move freely?
Electrons move freely in a solid, as in a metal
